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BPSC TRE · Class 6–8 · Mathematics & Science Previous Year Questions

BPSC TRE Maths & Science Previous Year Questions (PYQs) – 240 Questions

TRE-2 · TRE-3 Original · TRE-3 Re-Exam · Mathematics · Science

Practice 240 BPSC TRE Class 6–8 Mathematics and Science previous year questions with the original A–E options and booklet question numbers. The bank contains 120 Mathematics and 120 Science PYQs from TRE-2, the TRE-3 original sitting and the TRE-3 re-exam.

240Maths & Science PYQs
240verified questions loaded
120Mathematics questions
120Science questions

BPSC TRE Class 6–8 Maths & Science Question Paper Coverage

For each included sitting, Part III contains Question Nos. 71–150. Mathematics runs from Q.71–110 and Science runs from Q.111–150, giving 80 subject questions per paper and 240 questions across the three source sittings.

TRE-2 · Class 6–8 Mathematics & Science9 Dec 2023 · Official paper80 / 80 loaded
TRE-3 · Class 6–8 Mathematics & Science · Original15 Mar 2024 · Cancelled sitting80 / 80 loaded
TRE-3 · Class 6–8 Mathematics & Science · Re-Exam19 Jul 2024 · Official re-exam80 / 80 loaded
Mathematics120 PYQs
Science120 PYQs

BPSC TRE Maths & Science PYQ Bank – Complete 240 Questions

Use the search and filters to study the previous year questions paper-wise or subject-wise. Every card retains the original question number, all five answer options and its source-page reference.

Mathematics PYQs

120 questions across Q.71–110 from each sitting, covering the mathematical areas tested by BPSC in these papers.

Science PYQs

120 questions across Q.111–150 from each sitting, including the Physics, Chemistry and Biology content appearing in the source papers.

240 matching PYQs · showing 1–30
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.71
Question 1

Find the single discount equivalent to two successive discounts of 20% and 10%.

Select the correct answer:
  • 25%
  • 26%
  • 28%
  • More than one of the above
  • None of the above
Original Q.71 · p. 20 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.72
Question 2

In a certain experiment, the count of bacteria was increasing at the rate of 2.5% per hour. Initially, the count was 512000. Find the count of bacteria at the end of 2 hours.

Select the correct answer:
  • 537920
  • 536920
  • 537960
  • More than one of the above
  • None of the above
Original Q.72 · p. 20 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.73
Question 3

The value of a machine depreciates at the rate of 20% per annum. It was purchased two years ago. If its present value is Rs. 40,000, for how much was it purchased?

Select the correct answer:
  • Rs. 62,500
  • Rs. 65,200
  • Rs. 56,500
  • More than one of the above
  • None of the above
Original Q.73 · p. 20 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.74
Question 4

Which of the following statements is not necessarily true? (I) A quadrilateral is a parallelogram if its diagonals bisect each other. (II) If the diagonals of a quadrilateral are equal, then it is a rectangle. (III) If the diagonals of a quadrilateral intersect at right angles, then it is a rhombus. (IV) A rectangle, a square and a rhombus are special types of parallelograms.

Select the correct answer:
  • I
  • II
  • III
  • More than one of the above
  • None of the above
Original Q.74 · p. 20 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.75
Question 5

ABCD is a trapezium in which AB || DC, AB = 78 cm, CD = 52 cm, AD = 28 cm and BC = 30 cm. What is the area of this trapezium?

Select the correct answer:
  • 1860 cm²
  • 1680 cm²
  • 1620 cm²
  • More than one of the above
  • None of the above
Original Q.75 · p. 20 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.76
Question 6

The capacity of a reservoir is 108 m³. Water is poured into it at the rate of 60 litres per minute. How many hours will it take to fill the reservoir?

Select the correct answer:
  • 30
  • 32
  • 28
  • More than one of the above
  • None of the above
Original Q.76 · p. 22 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.77
Question 7

If each side of a cuboid is doubled, its surface area

Select the correct answer:
  • is doubled
  • becomes four times
  • becomes six times
  • More than one of the above
  • None of the above
Original Q.77 · p. 22 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.78
Question 8

The following table gives the frequency distribution of marks: 0-10: 3, 10-20: 8, 20-30: 16, 30-40: 30, 40-50: 17, 50-60: 4. The median class is

Select the correct answer:
  • 20-30
  • 30-40
  • 40-50
  • More than one of the above
  • None of the above
Original Q.78 · p. 22 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.79
Question 9

Solve: (2^(3x-1) + 10) / 7 = 6.

Select the correct answer:
  • -2
  • 1
  • 2
  • More than one of the above
  • None of the above
Original Q.79 · p. 22 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.80
Question 10

A steamer goes downstream from one port to another in 4 hours. It covers the same distance upstream in 5 hours. If the speed of the stream is 2 km/hr, then the speed of the steamer in still water is

Select the correct answer:
  • 18 km/hr
  • 16 km/hr
  • 15 km/hr
  • More than one of the above
  • None of the above
Original Q.80 · p. 22 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.81
Question 11

The maximum value of sin theta + cos theta is

Select the correct answer:
  • 2
  • sqrt(2)
  • sqrt(3)
  • More than one of the above
  • None of the above
Original Q.81 · p. 22 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.82
Question 12

For what value of x is the line through the points (-2, 6) and (4, 8) perpendicular to the line through the points (8, 12) and (x, 24)?

Select the correct answer:
  • 2
  • 3
  • 4
  • More than one of the above
  • None of the above
Original Q.82 · p. 24 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.83
Question 13

If the angle between two lines is pi/4 and the slope of one of the lines is 1/2, then the slope of the other line is

Select the correct answer:
  • 2
  • 3
  • -1/3
  • More than one of the above
  • None of the above
Original Q.83 · p. 24 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.84
Question 14

If three points (h, 0), (a, b) and (0, k) lie on a line, then the value of a/h + b/k is

Select the correct answer:
  • -1
  • 1
  • 2
  • More than one of the above
  • None of the above
Original Q.84 · p. 24 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.85
Question 15

If the perpendicular drawn from the origin to a straight line makes an angle alpha with the positive direction of the y-axis and is of length p, then the equation of the straight line is

Select the correct answer:
  • x cos alpha + y sin alpha = p
  • x sin alpha + y cos alpha = p
  • y = x tan alpha + p
  • More than one of the above
  • None of the above
Original Q.85 · p. 24 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.86
Question 16

The intercepts made by the line 3x - 4y + 10 = 0 on the x- and y-axes are respectively

Select the correct answer:
  • (-3/10, 2/5)
  • (5/2, -10/3)
  • (-10/3, 5/2)
  • More than one of the above
  • None of the above
Original Q.86 · p. 24 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.87
Question 17

A vehicle covers a certain distance at a uniform speed. If its speed were 6 km/hr more, it would take 4 hours less; if its speed were 6 km/hr less, it would take 6 hours more. The distance is

Select the correct answer:
  • 640 km
  • 680 km
  • 720 km
  • More than one of the above
  • None of the above
Original Q.87 · p. 24 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.88
Question 18

Shyam borrowed Rs. 1,80,000 for repairing his house. This amount is to be refunded in three equal annual instalments with 10% interest. The amounts payable at the ends of the first, second and third years respectively are

Select the correct answer:
  • Rs. 78,000; Rs. 72,000; Rs. 66,000
  • Rs. 78,000; Rs. 70,000; Rs. 65,000
  • Rs. 78,000; Rs. 71,000; Rs. 67,000
  • More than one of the above
  • None of the above
Original Q.88 · p. 26 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.89
Question 19

The value of cos(-1710 degrees) is

Select the correct answer:
  • 0
  • 1
  • -1
  • More than one of the above
  • None of the above
Original Q.89 · p. 26 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.90
Question 20

The standard deviation of 11, 14, 15, 17, 18 is

Select the correct answer:
  • 2
  • 5
  • 6
  • More than one of the above
  • None of the above
Original Q.90 · p. 26 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.91
Question 21

The minute hand of a clock is 1.5 cm long. How far does its tip move in 40 minutes?

Select the correct answer:
  • 3pi cm
  • 2pi cm
  • 6.5 cm
  • More than one of the above
  • None of the above
Original Q.91 · p. 26 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.92
Question 22

For every positive integer n, 41^n - 14^n is divisible by

Select the correct answer:
  • 14
  • 55
  • 27
  • More than one of the above
  • None of the above
Original Q.92 · p. 26 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.93
Question 23

A card is drawn from a well-shuffled pack of 52 cards. If every outcome is equally likely, what is the probability that the card will not be a diamond?

Select the correct answer:
  • 1/4
  • 12/13
  • 3/4
  • More than one of the above
  • None of the above
Original Q.93 · p. 26 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.94
Question 24

P, Q and R can complete a work in 6 hours, 8 hours and 15 hours respectively. They together completed the work and received Rs. 9,460 as remuneration. Their shares in the remuneration are respectively

Select the correct answer:
  • Rs. 4,200; Rs. 3,500; Rs. 1,760
  • Rs. 4,400; Rs. 3,300; Rs. 1,760
  • Rs. 4,300; Rs. 3,250; Rs. 1,910
  • More than one of the above
  • None of the above
Original Q.94 · p. 28 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.95
Question 25

The sum of the squares of two natural numbers is 410. If the square of the larger number is 26 times the smaller number plus 3, then the difference between the two numbers is

Select the correct answer:
  • 28
  • 10
  • 6
  • More than one of the above
  • None of the above
Original Q.95 · p. 28 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.96
Question 26

When x^3 - 10x^2 + 2x + 3 is divided by (x + 1), the remainder is

Select the correct answer:
  • -1
  • -10
  • 2
  • More than one of the above
  • None of the above
Original Q.96 · p. 28 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.97
Question 27

Susheel earned Rs. 6,00,000 in a year. In each month after the first, he earned Rs. 1,500 more than he did in the previous month. How much did he earn in the first month?

Select the correct answer:
  • Rs. 41,000
  • Rs. 41,500
  • Rs. 41,750
  • More than one of the above
  • None of the above
Original Q.97 · p. 28 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.98
Question 28

Three consecutive natural numbers are such that the sum of the square of the first and the product of the second and third is 191. What are they?

Select the correct answer:
  • 9, 10, 11
  • 8, 9, 10
  • 10, 11, 12
  • More than one of the above
  • None of the above
Original Q.98 · p. 28 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.99
Question 29

The coordinates of three points A, B and C are (a/3, a), (2a/3, 2a) and (a/3, 3a) respectively. Triangle ABC is

Select the correct answer:
  • equilateral
  • isosceles
  • right-angled
  • More than one of the above
  • None of the above
Original Q.99 · p. 28 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.100
Question 30

If p and q are the lengths of the perpendiculars drawn from the origin on the lines x sin theta + y cos theta = 2b sin theta cos theta and x cos theta - y sin theta = b cos 2theta respectively, then the value of p^2 + q^2 is

Select the correct answer:
  • b^2
  • b^2/2
  • 2b^2
  • More than one of the above
  • None of the above
Original Q.100 · p. 30 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.101
Question 31

The area of a square field is 60025 m². A man cycles along its boundary at the speed of 18 km/hr. In how much time will he return to the starting point?

Select the correct answer:
  • 3 minutes 15 seconds
  • 3 minutes 16 seconds
  • 3 minutes 12 seconds
  • More than one of the above
  • None of the above
Original Q.101 · p. 30 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.102
Question 32

Two cards are randomly drawn from a pack of 52 cards and thrown away. What is the probability of drawing an ace in a simple draw from the remaining 50 cards?

Select the correct answer:
  • 7/50
  • 11/50
  • 9/50
  • More than one of the above
  • None of the above
Original Q.102 · p. 30 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.103
Question 33

The product of cos(A+B) and cos(A-B) is

Select the correct answer:
  • sin²A - sin²B
  • cos²A - sin²B
  • cos²A - cos²B
  • More than one of the above
  • None of the above
Original Q.103 · p. 30 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.104
Question 34

From the window of a house, the angle of elevation of the top of a flag is 60 degrees and the angle of depression of its base is 30 degrees. If the horizontal distance of the flag from the house is 6 m, then find the height of the flag.

Select the correct answer:
  • 6sqrt(3) m
  • 7sqrt(3) m
  • 8sqrt(3) m
  • More than one of the above
  • None of the above
Original Q.104 · p. 30 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.105
Question 35

The area of a rhombus is 480 cm² and the length of its shorter diagonal is 20 cm. The length of its longer diagonal is

Select the correct answer:
  • 24 cm
  • 36 cm
  • 48 cm
  • More than one of the above
  • None of the above
Original Q.105 · p. 32 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.106
Question 36

Places A and B are 240 km apart on a highway. One car starts from A and another from B at the same time. If the cars travel in the same direction at different speeds, they meet in 8 hours. If they travel towards each other with their previous speeds, they meet in 2 hours. What are the speeds of the two cars?

Select the correct answer:
  • 70 km/hr, 50 km/hr
  • 60 km/hr, 40 km/hr
  • 50 km/hr, 30 km/hr
  • More than one of the above
  • None of the above
Original Q.106 · p. 32 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.107
Question 37

Calculate the arithmetic mean from the frequency distribution: class intervals 0-10, 10-20, 20-30, 30-40, 40-50 with frequencies 6, 10, 9, 4, 11 respectively.

Select the correct answer:
  • 26
  • 25
  • 24
  • More than one of the above
  • None of the above
Original Q.107 · p. 32 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.108
Question 38

The mean and median of a distribution are respectively 25.5 and 26. The mode is

Select the correct answer:
  • 27
  • 24.5
  • 26.5
  • More than one of the above
  • None of the above
Original Q.108 · p. 32 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.109
Question 39

Simplify: (sin theta + sin 3theta + sin 5theta) / (cos theta + cos 3theta + cos 5theta).

Select the correct answer:
  • cot 3theta
  • tan 3theta
  • tan 2theta
  • More than one of the above
  • None of the above
Original Q.109 · p. 32 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Mathematics • Official paper • Q.110
Question 40

A cone and a hemisphere have the same base and the same volume. The ratio of their heights is

Select the correct answer:
  • 2:3
  • 3:1
  • 2:1
  • More than one of the above
  • None of the above
Original Q.110 · p. 32 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.111
Question 41

Two thin convergent lenses of powers 5 dioptres and 4 dioptres are placed coaxially 10 cm apart. The focal length of their combination would be

Select the correct answer:
  • 11.11 cm
  • 9.09 cm
  • 1.11 cm
  • More than one of the above
  • None of the above
Original Q.111 · p. 34 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.112
Question 42

An ideal transformer is used on 220 V line to deliver 2 A at 110 V. The current flowing in the primary of the transformer is

Select the correct answer:
  • 2 A
  • 1 A
  • 4.4 A
  • More than one of the above
  • None of the above
Original Q.112 · p. 34 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.113
Question 43

The radius of curvature of the path of a charged particle in a uniform magnetic field is directly proportional to

Select the correct answer:
  • intensity of the magnetic field
  • momentum of the charged particle
  • charge of the particle
  • More than one of the above
  • None of the above
Original Q.113 · p. 34 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.114
Question 44

Imagine a light planet is revolving around a star in circular orbit of radius R with the period of revolution T. If the gravitational force of attraction between the two is proportional to R^(-5/2), then

Select the correct answer:
  • T² proportional to R³
  • T² proportional to R^(3/2)
  • T² proportional to R^(7/2)
  • More than one of the above
  • None of the above
Original Q.114 · p. 34 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.115
Question 45

When a proton injected in magnetic field moves perpendicular to the lines of force, it follows

Select the correct answer:
  • circular path
  • helical path
  • parabolic path
  • More than one of the above
  • None of the above
Original Q.115 · p. 34 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.116
Question 46

The resistivity of a given conductor depends upon

Select the correct answer:
  • temperature
  • length of the conductor
  • area of cross-section
  • More than one of the above
  • None of the above
Original Q.116 · p. 34 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.117
Question 47

The area under velocity-time graph for a particle in a given interval of time represents

Select the correct answer:
  • displacement
  • acceleration
  • work done
  • More than one of the above
  • None of the above
Original Q.117 · p. 36 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.118
Question 48

The least resistance obtained by using 2 ohm, 4 ohm, 1 ohm and 100 ohm is

Select the correct answer:
  • < 100 ohm
  • < 2 ohm
  • < 1 ohm
  • More than one of the above
  • None of the above
Original Q.118 · p. 36 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.119
Question 49

The nucleus of the atom is positive

Select the correct answer:
  • due to the presence of electrons around it
  • due to the presence of neutrons
  • due to the presence of protons
  • More than one of the above
  • None of the above
Original Q.119 · p. 36 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.120
Question 50

Voltage is equal to

Select the correct answer:
  • Work done / (Current x Time)
  • Work done x Charge
  • Work done x (Time / Current)
  • More than one of the above
  • None of the above
Original Q.120 · p. 36 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.121
Question 51

As the wavelength is increased from violet to red, the luminosity

Select the correct answer:
  • first increases then decreases
  • first decreases then increases
  • remains constant
  • More than one of the above
  • None of the above
Original Q.121 · p. 36 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.122
Question 52

If the light moving in a straight line bends by a small but fixed angle, it may be a case of

Select the correct answer:
  • diffraction
  • dispersion
  • interference
  • More than one of the above
  • None of the above
Original Q.122 · p. 36 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.123
Question 53

Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?

Select the correct answer:
  • The faster one
  • The slower one
  • Both will reach simultaneously
  • More than one of the above
  • None of the above
Original Q.123 · p. 36 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.124
Question 54

If the speed and radius of a body moving in a circular path are doubled, then the magnitude of centripetal acceleration will be

Select the correct answer:
  • half
  • four times
  • doubled
  • More than one of the above
  • None of the above
Original Q.124 · p. 36 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.125
Question 55

Which of the following reactions represents a displacement reaction?

Select the correct answer:
  • MgCO3 -> MgO + CO2
  • 2H2 + O2 -> 2H2O
  • 2Na + 2H2O -> 2NaOH + H2
  • More than one of the above
  • None of the above
Original Q.125 · p. 38 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.126
Question 56

Carbon mainly forms covalent bonds because

Select the correct answer:
  • it has 4 electrons in its outermost shell
  • a large amount of energy is required to form C4+
  • it shares its valence electrons to complete its octet
  • More than one of the above
  • None of the above
Original Q.126 · p. 38 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.127
Question 57

Sodium carbonate is a basic salt because it is a salt of

Select the correct answer:
  • a strong acid and a strong base
  • a weak acid and a weak base
  • a weak acid and a strong base
  • More than one of the above
  • None of the above
Original Q.127 · p. 38 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.128
Question 58

Benzene reacts with chlorine in the presence of light to yield

Select the correct answer:
  • chlorobenzene
  • tetrachlorobenzene
  • benzene hexachloride
  • More than one of the above
  • None of the above
Original Q.128 · p. 38 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.129
Question 59

Burning of lime to give calcium oxide and carbon dioxide is

Select the correct answer:
  • oxidation process
  • decomposition process
  • reduction process
  • More than one of the above
  • None of the above
Original Q.129 · p. 38 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.130
Question 60

A solution reacts with crushed eggshells to give a gas that turns limewater milky. The solution contains

Select the correct answer:
  • NaCl
  • HCl
  • LiCl
  • More than one of the above
  • None of the above
Original Q.130 · p. 38 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.131
Question 61

10 mL of a solution of NaOH is found to be completely neutralized by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount of HCl solution (the same solution as before) required to neutralize it will be

Select the correct answer:
  • 4 mL
  • 8 mL
  • 12 mL
  • More than one of the above
  • None of the above
Original Q.131 · p. 40 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.132
Question 62

A drop of a liquid sample is put on pH paper. It is observed that the colour of pH paper turns blue. The liquid sample is

Select the correct answer:
  • distilled water
  • lemon juice
  • sodium bicarbonate solution
  • More than one of the above
  • None of the above
Original Q.132 · p. 40 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.133
Question 63

Which acid is found in tomato?

Select the correct answer:
  • Citric acid
  • Oxalic acid
  • Lactic acid
  • More than one of the above
  • None of the above
Original Q.133 · p. 40 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.134
Question 64

Na2CO3.10H2O is known as

Select the correct answer:
  • baking soda
  • baking powder
  • washing soda
  • More than one of the above
  • None of the above
Original Q.134 · p. 40 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.135
Question 65

In chemistry, pKa stands for

Select the correct answer:
  • polymer kinetic analogue
  • the symbol for the acid dissociation constant at logarithmic scale
  • phenyl ketone acetate
  • More than one of the above
  • None of the above
Original Q.135 · p. 40 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.136
Question 66

The colourless species is

Select the correct answer:
  • VCl3
  • VOSO4
  • Na3VO4
  • More than one of the above
  • None of the above
Original Q.136 · p. 40 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.137
Question 67

Which metal is a part of German silver?

Select the correct answer:
  • Cu
  • Zn
  • Ni
  • More than one of the above
  • None of the above
Original Q.137 · p. 40 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.138
Question 68

Kolbe's electrolytic method can be applied on

Select the correct answer:
  • CH3COONa
  • [structure shown: CH2COOK / CH2COOK]
  • [structure shown: HC-COOK / HC-COOK]
  • More than one of the above
  • None of the above
Original Q.138 · p. 40 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.139
Question 69

The main site of photosynthesis in the cells of a leaf is

Select the correct answer:
  • mitochondria
  • cytoplasm
  • chloroplast
  • More than one of the above
  • None of the above
Original Q.139 · p. 42 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.140
Question 70

The contraction and expansion movement of the wall of the food pipe is called

Select the correct answer:
  • translocation
  • transpiration
  • peristaltic movement
  • More than one of the above
  • None of the above
Original Q.140 · p. 42 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.141
Question 71

The tube connecting the kidney to the urinary bladder in humans is

Select the correct answer:
  • urethra
  • ureter
  • nephron
  • More than one of the above
  • None of the above
Original Q.141 · p. 42 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.142
Question 72

The most conducive pH range for the life of freshwater plants and animals is

Select the correct answer:
  • 9.0-10.5
  • 3.5-7.0
  • 6.5-7.5
  • More than one of the above
  • None of the above
Original Q.142 · p. 42 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.143
Question 73

An unripe green fruit changes colour when it ripens. The reason is

Select the correct answer:
  • chromoplast changes to chlorophyll
  • chromoplast changes to chromosome
  • chloroplast changes to chromoplast
  • More than one of the above
  • None of the above
Original Q.143 · p. 42 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.144
Question 74

In Amoeba, food is digested in

Select the correct answer:
  • food vacuole
  • mitochondria
  • pseudopodia
  • More than one of the above
  • None of the above
Original Q.144 · p. 42 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.145
Question 75

Which of the following is not a function of the vacuole in plants?

Select the correct answer:
  • They store toxic metabolic wastes
  • They help in the process of cell division
  • They help to maintain turgidity
  • More than one of the above
  • None of the above
Original Q.145 · p. 44 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.146
Question 76

Nodes of Ranvier are found in

Select the correct answer:
  • nerve cells
  • heart cells
  • liver cells
  • More than one of the above
  • None of the above
Original Q.146 · p. 44 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.147
Question 77

The connecting link between birds and reptiles is

Select the correct answer:
  • Archaeopteryx
  • Ichthyostega
  • Lycaenops
  • More than one of the above
  • None of the above
Original Q.147 · p. 44 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.148
Question 78

Dengue fever is caused by

Select the correct answer:
  • DNA-containing arbovirus
  • RNA-containing arbovirus
  • paramyxovirus
  • More than one of the above
  • None of the above
Original Q.148 · p. 44 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.149
Question 79

The youngest secondary xylem occurs

Select the correct answer:
  • just inside the phellogen
  • just outside the phellogen
  • just inside the vascular cambium
  • More than one of the above
  • None of the above
Original Q.149 · p. 44 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-2 • Science • Official paper • Q.150
Question 80

Which of the following functions is performed by Malpighian tubules in cockroach?

Select the correct answer:
  • Excretion
  • Blood circulation
  • Digestion
  • More than one of the above
  • None of the above
Original Q.150 · p. 44 · Class 6-8 · 09 Dec 2023
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.71
Question 81

Mohan buys Rs. 20 shares paying 9% dividend. He wants to earn an interest of 12% on his money. The market value of each share is

Select the correct answer:
  • Rs. 16
  • Rs. 19
  • Rs. 15
  • More than one of the above
  • None of the above
Original Q.71 · scan page-27.png / printed p.28 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.72
Question 82

A number when divided by 342 gives a remainder 47. When the same number is divided by 19, what would be the remainder?

Select the correct answer:
  • 17
  • 9
  • -1
  • More than one of the above
  • None of the above
Original Q.72 · scan page-27.png / printed p.28 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.73
Question 83

The area of a rectangle is equal to the area of a circle with radius 14 cm. If the breadth of the rectangle is 22 cm, what is its length?

Select the correct answer:
  • 28 cm
  • 25 cm
  • 30 cm
  • More than one of the above
  • None of the above
Original Q.73 · scan page-27.png / printed p.28 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.74
Question 84

What will be the perimeter of a semicircle if the radius of the semicircle is equal to half the side of a square of area 196 m²?

Select the correct answer:
  • 20 m
  • 44 m
  • 22 m
  • More than one of the above
  • None of the above
Original Q.74 · scan page-27.png / printed p.28 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.75
Question 85

A father's age is 6 times his son's age. Four years after, the age of the father will be four times his son's age. The present ages (in years) of the son and the father are respectively

Select the correct answer:
  • 4 and 24
  • 6 and 36
  • 7 and 42
  • More than one of the above
  • None of the above
Original Q.75 · scan page-27.png / printed p.28 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.76
Question 86

The lengths of the diagonals of a rhombus are 16 cm and 12 cm. Then the length of the sides of the rhombus is

Select the correct answer:
  • 10 cm
  • 9 cm
  • 8 cm
  • More than one of the above
  • None of the above
Original Q.76 · scan page-27.png / printed p.28 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.77
Question 87

If triangle ABC and triangle DEF are similar, where angle A = 30 degrees, angle C = 50 degrees, AB = 5 cm, AC = 8 cm and DF = 7.5 cm, then the value of DE is

Select the correct answer:
  • 14 cm
  • 15 cm
  • 12 cm
  • More than one of the above
  • None of the above
Original Q.77 · scan page-29.png / printed p.30 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.78
Question 88

A tangent PQ at a point P of a circle of radius 5 cm meets a line through the centre O at a point Q so that OQ = 12 cm. Then the length PQ is

Select the correct answer:
  • sqrt(119) cm
  • sqrt(199) cm
  • 12 cm
  • More than one of the above
  • None of the above
Original Q.78 · scan page-29.png / printed p.30 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.79
Question 89

Two cubes each of volume 64 cm³ are joined end-to-end. The surface area of the resulting cuboid is

Select the correct answer:
  • 150 cm²
  • 149 cm²
  • 160 cm²
  • More than one of the above
  • None of the above
Original Q.79 · scan page-29.png / printed p.30 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.80
Question 90

The radius of a wheel is 21 cm. How many revolutions will it make in travelling 924 meters?

Select the correct answer:
  • 650
  • 700
  • 750
  • More than one of the above
  • None of the above
Original Q.80 · scan page-29.png / printed p.30 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.81
Question 91

Three metallic spheres of radii 6 cm, 8 cm and 10 cm respectively are melted to form a single solid sphere. The radius of this solid sphere is

Select the correct answer:
  • 12 cm
  • 13 cm
  • 10 cm
  • More than one of the above
  • None of the above
Original Q.81 · scan page-29.png / printed p.30 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.82
Question 92

If theta is an acute angle such that cos theta = 3/5, then (sin theta tan theta - 1) / (2 tan² theta) is equal to

Select the correct answer:
  • 3/140
  • 3/160
  • 160/3
  • More than one of the above
  • None of the above
Original Q.82 · scan page-31.png / printed p.32 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.83
Question 93

For what value(s) of k, the equation kx² + kx + 1 = -4x² - x has real and equal roots?

Select the correct answer:
  • 3
  • -3
  • 5
  • More than one of the above
  • None of the above
Original Q.83 · scan page-31.png / printed p.32 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.84
Question 94

If the 3rd term of an A.P. is 5 and the 7th term is 9, then its 17th term will be

Select the correct answer:
  • 25
  • 29
  • 19
  • More than one of the above
  • None of the above
Original Q.84 · scan page-31.png / printed p.32 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.85
Question 95

The equation of a line passing through the point (3, 5) and perpendicular to the line x + 5y - 4 = 0 is

Select the correct answer:
  • 5x - y - 10 = 0
  • x - 5y - 10 = 0
  • 5x + y - 10 = 0
  • More than one of the above
  • None of the above
Original Q.85 · scan page-31.png / printed p.32 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.86
Question 96

If the difference between the circumference and radius of a circle is 37 cm, then using pi = 22/7, the circumference of the circle is

Select the correct answer:
  • 56 cm
  • 44 cm
  • 35 cm
  • More than one of the above
  • None of the above
Original Q.86 · scan page-31.png / printed p.32 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.87
Question 97

The area of a square is 3/5 the area of a rectangle. The length of the rectangle is 25 cm and its breadth is 10 cm less than its length. What is the perimeter of the square?

Select the correct answer:
  • 60 cm
  • 64 cm
  • 56 cm
  • More than one of the above
  • None of the above
Original Q.87 · scan page-31.png / printed p.32 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.88
Question 98

The ratio of the length of a rod and its shadow is 1 : sqrt(3). The angle of elevation of the Sun is

Select the correct answer:
  • 45 degrees
  • 30 degrees
  • 60 degrees
  • More than one of the above
  • None of the above
Original Q.88 · scan page-33.png / printed p.34 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.89
Question 99

The ratio of milk and water in 64 litres of a mixture is 5 : 3. What amount of water should be added to make the ratio 3 : 5?

Select the correct answer:
  • 42 3/2 litres
  • 44 litres
  • 42 2/3 litres
  • More than one of the above
  • None of the above
Original Q.89 · scan page-33.png / printed p.34 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.90
Question 100

Five years ago Meenu was thrice as old as Aman. Ten years later Meenu will be twice as old as Aman. The present ages (in years) of Meenu and Aman are respectively

Select the correct answer:
  • 55 and 25
  • 60 and 20
  • 50 and 20
  • More than one of the above
  • None of the above
Original Q.90 · scan page-33.png / printed p.34 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.91
Question 101

If the mean of first n natural numbers is 3n/5, then the value of n is

Select the correct answer:
  • 4
  • 5
  • 7
  • More than one of the above
  • None of the above
Original Q.91 · scan page-33.png / printed p.34 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.92
Question 102

A bag has 5 white balls, 8 red balls and 4 purple balls. If we take a ball randomly, then what is the probability of not getting a purple ball?

Select the correct answer:
  • 0.77
  • 0.81
  • 0.87
  • More than one of the above
  • None of the above
Original Q.92 · scan page-33.png / printed p.34 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.93
Question 103

In a simultaneous throw of two coins, the probability of getting at least one head is

Select the correct answer:
  • 3/7
  • 3/4
  • 3/5
  • More than one of the above
  • None of the above
Original Q.93 · scan page-33.png / printed p.34 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.94
Question 104

Ram can do a piece of work in 60 days. He works for 15 days and then Shyam alone finishes the remaining work in 30 days. The two together can finish the work in

Select the correct answer:
  • 22 days
  • 24 days
  • 20 days
  • More than one of the above
  • None of the above
Original Q.94 · scan page-35.png / printed p.36 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.95
Question 105

Swati invests Rs. 1,87,000 in the stock market which is 20% of her annual income. Her monthly income is approximately

Select the correct answer:
  • Rs. 62,333
  • Rs. 62,133
  • Rs. 62,500
  • More than one of the above
  • None of the above
Original Q.95 · scan page-35.png / printed p.36 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.96
Question 106

The points scored by a Kabaddi team in a series of matches are 17, 2, 7, 27, 15, 5, 14, 8, 10, 24, 48, 10, 8, 7, 18, 28. The median of the points will be

Select the correct answer:
  • 14
  • 10
  • 12
  • More than one of the above
  • None of the above
Original Q.96 · scan page-35.png / printed p.36 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.97
Question 107

4/7 of a number is equal to 40% of another number. The ratio between the first number and the second number respectively is

Select the correct answer:
  • 6:7
  • 7:10
  • 10:7
  • More than one of the above
  • None of the above
Original Q.97 · scan page-35.png / printed p.36 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.98
Question 108

A 120 m long train takes 10 seconds to cross a man standing on the platform. The speed (in m/s) of the train is

Select the correct answer:
  • 10
  • 11
  • 12
  • More than one of the above
  • None of the above
Original Q.98 · scan page-35.png / printed p.36 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.99
Question 109

The largest number of four digits, which on divided by 15, 18, 21 and 24 gives remainders 11, 14, 17 and 20 respectively, is

Select the correct answer:
  • 7564
  • 7656
  • 7556
  • More than one of the above
  • None of the above
Original Q.99 · scan page-38.png / printed p.38 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.100
Question 110

In an examination, 35% of total students failed in Hindi, 45% failed in Mathematics and 20% in both. The percentage of those who passed in both the subjects is

Select the correct answer:
  • 30%
  • 50%
  • 40%
  • More than one of the above
  • None of the above
Original Q.100 · scan page-38.png / printed p.38 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.101
Question 111

A number when divided by 3 leaves a remainder 1. When the quotient is divided by 2, it leaves a remainder 1. What will be the remainder when the number is divided by 6?

Select the correct answer:
  • 5
  • 4
  • 1
  • More than one of the above
  • None of the above
Original Q.101 · scan page-38.png / printed p.38 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.102
Question 112

An oil tank is 2/5 full. If 32 litres of oil is added to the tank, it becomes 6/7 full. The capacity of the tank is

Select the correct answer:
  • 48 litres
  • 70 litres
  • 35 litres
  • More than one of the above
  • None of the above
Original Q.102 · scan page-38.png / printed p.38 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.103
Question 113

A fan is sold for Rs. 4,900 at a loss of 30%. What is the cost price of the fan?

Select the correct answer:
  • Rs. 7,000
  • Rs. 6,300
  • Rs. 7,500
  • More than one of the above
  • None of the above
Original Q.103 · scan page-38.png / printed p.38 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.104
Question 114

A principal amount becomes Rs. 169 in two years at 4% per annum compound interest. The principal amount is

Select the correct answer:
  • Rs. 156.25
  • Rs. 158.75
  • Rs. 152.25
  • More than one of the above
  • None of the above
Original Q.104 · scan page-40.png / printed p.40 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.105
Question 115

A tank is of length 25 m, breadth 12 m and depth 6 m. The cost of plastering walls and bottom of the tank at the rate of 50 paise per square meter is

Select the correct answer:
  • Rs. 744
  • Rs. 372
  • Rs. 382
  • More than one of the above
  • None of the above
Original Q.105 · scan page-40.png / printed p.40 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.106
Question 116

The volume of a sphere is equal to the volume of a cone with base 6 cm and height 24 cm. The radius of the sphere is

Select the correct answer:
  • 5 cm
  • 7 cm
  • 8 cm
  • More than one of the above
  • None of the above
Original Q.106 · scan page-40.png / printed p.40 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.107
Question 117

The lines representing the equations 6x - 3y + 10 = 0 and -2x + y - 9 = 0 are

Select the correct answer:
  • intersecting
  • coincident
  • parallel
  • More than one of the above
  • None of the above
Original Q.107 · scan page-40.png / printed p.40 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.108
Question 118

Ram can row downstream 20 km in 2 hours and upstream 4 km in 2 hours. The speed of the stream is

Select the correct answer:
  • 4 km/h
  • 8 km/h
  • 6 km/h
  • More than one of the above
  • None of the above
Original Q.108 · scan page-40.png / printed p.40 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.109
Question 119

The value(s) of k for which the equation 2x² + kx + 3 = 0 has equal roots is/are

Select the correct answer:
  • -2sqrt(6)
  • sqrt(6)
  • 2sqrt(6)
  • More than one of the above
  • None of the above
Original Q.109 · scan page-40.png / printed p.40 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Mathematics • Cancelled sitting • Q.110
Question 120

The value of cos²17 degrees - sin²73 degrees is

Select the correct answer:
  • 0
  • 1/sqrt(3)
  • 2/3
  • More than one of the above
  • None of the above
Original Q.110 · scan page-40.png / printed p.40 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.111
Question 121

Which of the following is the formula for motion in a straight line?

Select the correct answer:
  • v = u - at
  • v = 2at + u
  • v = u + at
  • More than one of the above
  • None of the above
Original Q.111 · scan page-42.png / printed p.42 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.112
Question 122

Which of the following energy changes involves the frictional force?

Select the correct answer:
  • Potential energy to sound energy
  • Chemical energy to heat energy
  • Kinetic energy to heat energy
  • More than one of the above
  • None of the above
Original Q.112 · scan page-42.png / printed p.42 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.113
Question 123

When you stretch a rubber band, the energy transferred is stored in the form of

Select the correct answer:
  • muscular energy
  • mechanical energy
  • potential energy
  • More than one of the above
  • None of the above
Original Q.113 · scan page-42.png / printed p.42 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.114
Question 124

How much work is done in moving a charge of 5 C across two points having a potential difference of 16 V?

Select the correct answer:
  • 40 J
  • 80 J
  • 65 J
  • More than one of the above
  • None of the above
Original Q.114 · scan page-42.png / printed p.42 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.115
Question 125

If the distance between the two masses is doubled, then what happens to the gravitational force between them?

Select the correct answer:
  • Reduces to half
  • Reduces to a quarter
  • Doubles
  • More than one of the above
  • None of the above
Original Q.115 · scan page-42.png / printed p.42 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.116
Question 126

What is the energy required to move a body of mass m from an orbit with radius 2R to radius 3R?

Select the correct answer:
  • GMm/(6R)
  • GMm/(2R²)
  • GMm/(12R²)
  • More than one of the above
  • None of the above
Original Q.116 · scan page-42.png / printed p.42 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.117
Question 127

Which of the following is the relation between kinetic energy (E) of a gas and its pressure (P)?

Select the correct answer:
  • P = 3E
  • E = (2/3)P
  • P = (2/3)E
  • More than one of the above
  • None of the above
Original Q.117 · scan page-42.png / printed p.42 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.118
Question 128

A mass of 1 kg is attracted towards the Earth with a force which is

Select the correct answer:
  • 1 N
  • 9.8 m/s²
  • 9.8 N
  • More than one of the above
  • None of the above
Original Q.118 · scan page-44.png / printed p.44 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.119
Question 129

Artificial 'gene' was created by

Select the correct answer:
  • Har Gobind Khorana
  • Alexander Oparin
  • Meghnad Saha
  • More than one of the above
  • None of the above
Original Q.119 · scan page-44.png / printed p.44 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.120
Question 130

Who had given the concept of photovoltaic effect?

Select the correct answer:
  • Edmond Becquerel
  • Thomas Kibble
  • Alfred Wegener
  • More than one of the above
  • None of the above
Original Q.120 · scan page-44.png / printed p.44 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.121
Question 131

Who introduced the metric system?

Select the correct answer:
  • Canadian Government
  • Indian Government
  • French Government
  • More than one of the above
  • None of the above
Original Q.121 · scan page-44.png / printed p.44 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.122
Question 132

Which of the following mirrors is used by ENT specialists?

Select the correct answer:
  • Concave mirror
  • Convex mirror
  • Plane mirror
  • More than one of the above
  • None of the above
Original Q.122 · scan page-44.png / printed p.44 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.123
Question 133

Resistance of a wire is given by which of the following?

Select the correct answer:
  • R = IV
  • R = I/V
  • R = V/I
  • More than one of the above
  • None of the above
Original Q.123 · scan page-44.png / printed p.44 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.124
Question 134

Which of the following helps to act as the catalyst which breaks down food?

Select the correct answer:
  • hormone
  • digestive enzyme
  • dilute HCl
  • More than one of the above
  • None of the above
Original Q.124 · scan page-46.png / printed p.46 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.125
Question 135

What is the colour of AgBr?

Select the correct answer:
  • Brown
  • White
  • Blue
  • More than one of the above
  • None of the above
Original Q.125 · scan page-46.png / printed p.46 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.126
Question 136

What is the term used for liquid dispersion in another liquid?

Select the correct answer:
  • Gel
  • Aerosol
  • Emulsion
  • More than one of the above
  • None of the above
Original Q.126 · scan page-46.png / printed p.46 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.127
Question 137

Which of the following slows down the reaction rate?

Select the correct answer:
  • Homogeneous catalyst
  • Heterogeneous catalyst
  • Catalytic promoters
  • More than one of the above
  • None of the above
Original Q.127 · scan page-46.png / printed p.46 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.128
Question 138

Which of the following is not an example of lyophobic colloids?

Select the correct answer:
  • Sulphur solution
  • NaCl solution
  • Gold solution
  • More than one of the above
  • None of the above
Original Q.128 · scan page-46.png / printed p.46 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.129
Question 139

Which of the following is an example of sorption?

Select the correct answer:
  • Cotton dipped in ink
  • Water on silica gel
  • Sponge in water
  • More than one of the above
  • None of the above
Original Q.129 · scan page-46.png / printed p.46 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.130
Question 140

Which of the following should never be used to treat people directly?

Select the correct answer:
  • Antimalarials
  • Disinfectants
  • Antiseptic
  • More than one of the above
  • None of the above
Original Q.130 · scan page-46.png / printed p.46 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.131
Question 141

Which of the following is acidic in nature?

Select the correct answer:
  • Human blood
  • Limewater
  • Lemon juice
  • More than one of the above
  • None of the above
Original Q.131 · scan page-47.png / printed p.48 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.132
Question 142

Acid reacts with bases to form salt and water. This reaction is

Select the correct answer:
  • combination
  • decomposition
  • neutralization
  • More than one of the above
  • None of the above
Original Q.132 · scan page-47.png / printed p.48 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.133
Question 143

Which of the following elements would lose an electron easily?

Select the correct answer:
  • Na
  • Ca
  • K
  • More than one of the above
  • None of the above
Original Q.133 · scan page-47.png / printed p.48 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.134
Question 144

Which of the following gases turns limewater milky?

Select the correct answer:
  • CO
  • CO2
  • SO
  • More than one of the above
  • None of the above
Original Q.134 · scan page-47.png / printed p.48 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.135
Question 145

The metal found free in nature is

Select the correct answer:
  • Cu
  • Mg
  • Au
  • More than one of the above
  • None of the above
Original Q.135 · scan page-47.png / printed p.48 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.136
Question 146

The reaction in which heat energy is released is called

Select the correct answer:
  • reversible
  • exothermic
  • irreversible
  • More than one of the above
  • None of the above
Original Q.136 · scan page-47.png / printed p.48 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.137
Question 147

What is the chemical name of vitamin B12?

Select the correct answer:
  • Riboflavin
  • Cobalamin
  • Thiamin
  • More than one of the above
  • None of the above
Original Q.137 · scan page-49.png / printed p.50 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.138
Question 148

Which of the following is a good source of vitamin A?

Select the correct answer:
  • Sugar
  • Banana
  • Fish oil
  • More than one of the above
  • None of the above
Original Q.138 · scan page-49.png / printed p.50 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.139
Question 149

Which of the following is warm blooded?

Select the correct answer:
  • Pigeon
  • Toad
  • Crocodile
  • More than one of the above
  • None of the above
Original Q.139 · scan page-49.png / printed p.50 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.140
Question 150

Pungency in chillies is due to the presence of which of the following?

Select the correct answer:
  • Capsaicin
  • Carotene
  • Lycopene
  • More than one of the above
  • None of the above
Original Q.140 · scan page-49.png / printed p.50 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.141
Question 151

The process of converting nitrates into N2 is called

Select the correct answer:
  • dentrification
  • nitrogen-fixation
  • ammonification
  • More than one of the above
  • None of the above
Original Q.141 · scan page-49.png / printed p.50 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.142
Question 152

Which part of DNA provides information for a protein?

Select the correct answer:
  • Gene
  • RNA
  • Chromosome
  • More than one of the above
  • None of the above
Original Q.142 · scan page-49.png / printed p.50 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.143
Question 153

The process where the characteristics are transmitted from parent to offsprings is called

Select the correct answer:
  • variation
  • gene
  • heredity
  • More than one of the above
  • None of the above
Original Q.143 · scan page-49.png / printed p.50 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.144
Question 154

Input and output nerves meet at

Select the correct answer:
  • central nervous system (CNS)
  • heart
  • liver
  • More than one of the above
  • None of the above
Original Q.144 · scan page-51.png / printed p.52 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.145
Question 155

Night blindness is caused by the deficiency of which of the following vitamins?

Select the correct answer:
  • Vitamin K
  • Vitamin A
  • Vitamin C
  • More than one of the above
  • None of the above
Original Q.145 · scan page-51.png / printed p.52 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.146
Question 156

Energy which is stored in food that we eat is only released in cells of the body by which of the following processes?

Select the correct answer:
  • Excretion
  • Respiration
  • Elimination
  • More than one of the above
  • None of the above
Original Q.146 · scan page-51.png / printed p.52 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.147
Question 157

What is the cause of cold?

Select the correct answer:
  • Virus
  • Fungi
  • Bacteria
  • More than one of the above
  • None of the above
Original Q.147 · scan page-51.png / printed p.52 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.148
Question 158

Vibration of ear drum is due to which of the following?

Select the correct answer:
  • Electromagnetic wave
  • Sound wave
  • Light
  • More than one of the above
  • None of the above
Original Q.148 · scan page-51.png / printed p.52 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.149
Question 159

What is the respiratory pigment in human body?

Select the correct answer:
  • Haemoglobin
  • Chlorophyll
  • Blood
  • More than one of the above
  • None of the above
Original Q.149 · scan page-51.png / printed p.52 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Original • Science • Cancelled sitting • Q.150
Question 160

One-cell thick vessels are called

Select the correct answer:
  • arteries
  • veins
  • capillaries
  • More than one of the above
  • None of the above
Original Q.150 · scan page-51.png / printed p.52 · Class 6-8 · 15 Mar 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.71
Question 161

The sum of the exponents of the prime factors in the prime factorisation of 196 is

Select the correct answer:
  • 2
  • 4
  • 6
  • 1
  • None of these
Original Q.71 · p28_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.72
Question 162

If alpha and beta are the roots of the quadratic equation 4x² + 3x + 7 = 0, then 1/alpha + 1/beta =

Select the correct answer:
  • 7/3
  • 3/7
  • -3/7
  • -7/3
  • None of these
Original Q.72 · p28_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.73
Question 163

If 11 times the 11th term of an A.P. is equal to 7 times its 7th term, then its 18th term will be

Select the correct answer:
  • 11
  • 18
  • 0
  • 7
  • None of these
Original Q.73 · p28_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.74
Question 164

If point p(x, y) is equidistant from A(5, 1) and B(-1, 5), then

Select the correct answer:
  • x = 5y
  • 3x = 2y
  • 2x = 3y
  • 5x = y
  • None of these
Original Q.74 · p28_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.75
Question 165

The shadow of a tower is equal to its height at 10.45 a.m. The sun’s altitude is

Select the correct answer:
  • 45°
  • 60°
  • 90°
  • 30°
  • None of these
Original Q.75 · p28_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.76
Question 166

The radii of bases of a cylinder and a cone are in the ratio 3 : 4 and their heights are in the ratio 2 : 3. The ratio between the volume of cylinder to that of cone is

Select the correct answer:
  • 7 : 8
  • 5 : 7
  • 7 : 5
  • 8 : 9
  • None of these
Original Q.76 · p30_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.77
Question 167

The length of the hypotenuse of an isosceles right triangle whose one side is 4sqrt(2) cm is

Select the correct answer:
  • 7 cm
  • 8sqrt(2) cm
  • 12sqrt(2) cm
  • 12 cm
  • None of these
Original Q.77 · p30_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.78
Question 168

A sum of Rs. 10,000 is borrowed by Akshit for 2 years at an interest of 10% compounded annually. Find the compound interest and amount he has to pay at the end of 2 years.

Select the correct answer:
  • Rs. 12,200, Rs. 2,100
  • Rs. 12,200, Rs. 2,200
  • Rs. 12,100, Rs. 2,200
  • Rs. 12,100, Rs. 2,100
  • None of these
Original Q.78 · p30_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.79
Question 169

If a number x is chosen from the numbers 1, 2, 3 and a number y is selected from the numbers 1, 4, 9, then P(xy < 9) is

Select the correct answer:
  • 5/9
  • 2/3
  • 1/9
  • 7/9
  • None of these
Original Q.79 · p30_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.80
Question 170

The sum and product of the roots of the equation 2x² - 5x + 4 = 0 are in ratio

Select the correct answer:
  • 5 : 4
  • 10 : 4
  • 10 : 7
  • 5 : 2
  • None of these
Original Q.80 · p30_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.81
Question 171

In an equilateral triangle ABC, AD is perpendicular to BC. Then which of the following is true?

Select the correct answer:
  • 4AB² = 3AD²
  • 3AB² = 4AD²
  • 3AB² = 2AD²
  • 2AB² = 3AD²
  • None of these
Original Q.81 · p30_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.82
Question 172

If the difference between the circumference and radius of a circle is 37 cm, then using pi = 22/7, the circumference of the circle is

Select the correct answer:
  • 44
  • 14
  • 7
  • 154
  • None of these
Original Q.82 · p32_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.83
Question 173

If triangle ABC is right-angled at C, then the value of cos(A+B) is

Select the correct answer:
  • 1
  • 1/2
  • sqrt(3)/2
  • 0
  • None of these
Original Q.83 · p32_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.84
Question 174

In a throw of two dice, the probability of getting a sum of 10 is

Select the correct answer:
  • 1/36
  • 1/6
  • 1/4
  • 1/12
  • None of these
Original Q.84 · p32_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.85
Question 175

If P is a prime number, then LCM of P, P² and P³ is

Select the correct answer:
  • P²
  • P³
  • P⁶
  • P
  • None of these
Original Q.85 · p32_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.86
Question 176

The area of the circle that can be inscribed in a square of side 10 cm is

Select the correct answer:
  • 30pi cm²
  • 150pi cm²
  • 25pi cm²
  • 100pi cm²
  • None of these
Original Q.86 · p32_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.87
Question 177

The area of a sector of a circle with radius 6 cm if the angle of the sector is 60 degrees is

Select the correct answer:
  • 152/7
  • 132/7
  • 122/7
  • 142/7
  • None of these
Original Q.87 · p32_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.88
Question 178

(n+1)² - 1 is divisible by 8, if n is

Select the correct answer:
  • an even integer
  • a natural number
  • an integer
  • an odd integer
  • None of these
Original Q.88 · p34_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.89
Question 179

If radii of two concentric circles are 4 cm and 5 cm, then the length of each chord of one circle which is tangent to the other circle is

Select the correct answer:
  • 6 cm
  • 9 cm
  • 1 cm
  • 3 cm
  • None of these
Original Q.89 · p34_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.90
Question 180

If one zero of the quadratic polynomial x² + 3x + k is 2, then the value of k is

Select the correct answer:
  • -10
  • 5
  • -5
  • 10
  • None of these
Original Q.90 · p34_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.91
Question 181

Sides of two similar triangles are in the ratio 4 : 9. Areas of these triangles are in the ratio

Select the correct answer:
  • 4 : 9
  • 81 : 16
  • 16 : 81
  • 2 : 3
  • None of these
Original Q.91 · p34_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.92
Question 182

If the points A(1, 2), b(0, 0) and C(a, b) are collinear, then

Select the correct answer:
  • a = 2b
  • 2a = b
  • a = -b
  • a = b
  • None of these
Original Q.92 · p34_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.93
Question 183

Find the market price of 5% Rs. 100 share when a person gets a dividend of Rs. 65 by investing Rs. 1,430.

Select the correct answer:
  • 130
  • 120
  • 160
  • 150
  • None of these
Original Q.93 · p34_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.94
Question 184

If the perimeter of a circle is equal to that of a square, then the ratio of their area is

Select the correct answer:
  • 14 : 11
  • 7 : 22
  • 11 : 14
  • 22 : 7
  • None of these
Original Q.94 · p36_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.95
Question 185

If m^n = 32 where m and n are positive integers, then the value of n^(mn) is

Select the correct answer:
  • 2^5
  • 5^10
  • 5^25
  • 32
  • None of these
Original Q.95 · p36_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.96
Question 186

The graph of y = f(x), where f(x) is a quadratic polynomial, meets the x-axis at A(-2, 0) and B(-3, 0). Then the expression for f(x) is

Select the correct answer:
  • x² - 5x + 6
  • x² + 5x - 6
  • x² - 5x - 6
  • x² + 5x + 6
  • None of these
Original Q.96 · p36_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.97
Question 187

If the mean of first n natural numbers is 3n/5, then the value of n is

Select the correct answer:
  • 4
  • 5
  • 6
  • 3
  • None of these
Original Q.97 · p36_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.98
Question 188

A solid right circular cone is cut into two parts at the middle of its height by a plane parallel to its base. The ratio of the volume of smaller cone to the whole cone is

Select the correct answer:
  • 1 : 4
  • 1 : 6
  • 1 : 8
  • 1 : 2
  • None of these
Original Q.98 · p36_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.99
Question 189

A company declares 8 percent dividend to the shareholders. If a man receives Rs. 2,840 as his dividend, find the nominal value of his shares.

Select the correct answer:
  • 33500
  • 37500
  • 38500
  • 36500
  • None of these
Original Q.99 · p36_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.100
Question 190

sin(45 degrees + theta) - cos(45 degrees - theta) is equal to

Select the correct answer:
  • 0
  • sin theta
  • 1
  • 2 cosec theta
  • None of these
Original Q.100 · p38_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.101
Question 191

If the line segment is divided in the ratio 3 : 7, then how many parts does it contain while constructing the point of division ?

Select the correct answer:
  • 7
  • 4
  • 10
  • 3
  • None of these
Original Q.101 · p38_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.102
Question 192

If PA and PB are tangents to the circle with centre O such that angle APB = 50°, then angle OAB =

Select the correct answer:
  • 30°
  • 40°
  • 50°
  • 25°
  • None of these
Original Q.102 · p38_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.103
Question 193

A tank is made of the shape of a cylinder with a hemispherical depression at one end. The height of the cylinder is 1.45 m and radius is 30 cm. The total surface area of the tank is

Select the correct answer:
  • 3.3 m²
  • 30.3 m²
  • 3300 m²
  • 30 m²
  • None of these
Original Q.103 · p38_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.104
Question 194

If n is a natural number, then 6^n - 5^n always ends with

Select the correct answer:
  • 3
  • 5
  • 7
  • 1
  • None of these
Original Q.104 · p38_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.105
Question 195

The pair of equation x = a and y = b graphically representing lines which are

Select the correct answer:
  • Intersecting at (b, a)
  • Parallel
  • Intersecting at (0, 0)
  • Coincident
  • None of these
Original Q.105 · p38_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.106
Question 196

In a cricket match, a batsman hits the boundary 8 times out of 40 balls he plays. Find the probability that he did not hit the boundary.

Select the correct answer:
  • 1/5
  • 5/4
  • 5
  • 4/5
  • None of these
Original Q.106 · p40_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.107
Question 197

If tan A = cot (30° + A), then A =

Select the correct answer:
  • 30°
  • 135°
  • 60°
  • 45°
  • None of these
Original Q.107 · p40_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.108
Question 198

For a given data with 50 observations, the ‘less than ogive’ and the ‘more than ogive’ intersect at (15.5, 20). The median of the data is

Select the correct answer:
  • 20
  • 50
  • 15.5
  • 4.5
  • None of these
Original Q.108 · p40_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.109
Question 199

The probability that a non-leap year has 53 Sundays is

Select the correct answer:
  • 5/7
  • 6/7
  • 1/7
  • 2/7
  • None of these
Original Q.109 · p40_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Mathematics • Official re-exam • Q.110
Question 200

From the top of a cliff 25 m high, the angle of elevation of a tower is found to be equal to the angle of depression of the foot of the tower. The height of the tower is

Select the correct answer:
  • 50 m
  • 75 m
  • 100 m
  • 25 m
  • None of these
Original Q.110 · p40_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.111
Question 201

The force required to maintain an object at a constant velocity is

Select the correct answer:
  • Frictional force
  • Net force
  • Gravitational force
  • More than one of the above
  • None of the above
Original Q.111 · p42_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.112
Question 202

Which of the following is an unsaturated hydrocarbon ?

Select the correct answer:
  • Methane
  • Ethane
  • Ethene
  • More than one of the above
  • None of the above
Original Q.112 · p42_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.113
Question 203

The membrane surrounding the cell is called

Select the correct answer:
  • Cell wall
  • Plasma membrane
  • Cytoplasm
  • More than one of the above
  • None of the above
Original Q.113 · p42_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.114
Question 204

The study of the inheritance of traits in humans is called

Select the correct answer:
  • Herpetology
  • Paleontology
  • Heredity
  • More than one of the above
  • None of the above
Original Q.114 · p42_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.115
Question 205

A car covers a distance of 200 km in 4 hours. What is its average speed ?

Select the correct answer:
  • 100 km/h
  • 25 km/h
  • 50 km/h
  • More than one of the above
  • None of the above
Original Q.115 · p42_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.116
Question 206

The breakdown of pyruvate to give carbon dioxide, water and energy takes place in

Select the correct answer:
  • Chloroplast
  • Mitochondria
  • Cytoplasm
  • More than one of the above
  • None of the above
Original Q.116 · p42_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.117
Question 207

Which subatomic particle has negligible mass ?

Select the correct answer:
  • Proton
  • Neutron
  • Electron
  • More than one of the above
  • None of the above
Original Q.117 · p42_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.118
Question 208

The speed of sound is maximum in which of the following ?

Select the correct answer:
  • Water
  • Steel
  • Air
  • More than one of the above
  • None of the above
Original Q.118 · p42_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.119
Question 209

Food cans are coated with tin and not with zinc because

Select the correct answer:
  • zinc has a higher melting point than tin
  • zinc is more reactive than tin
  • zinc is costlier than tin
  • More than one of the above
  • None of the above
Original Q.119 · p44_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.120
Question 210

What happens to the gravitational force between two objects if the distance between them is doubled ?

Select the correct answer:
  • It becomes one-fourth
  • It becomes half
  • It quadruples
  • More than one of the above
  • None of the above
Original Q.120 · p44_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.121
Question 211

Which of the following are environment-friendly practices ?

Select the correct answer:
  • Switching off unnecessary lights and fans
  • Walking to school instead of getting your mother to drop you on her scooter
  • Carrying cloth bags to put purchases in while shopping
  • More than one of the above
  • None of the above
Original Q.121 · p44_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.122
Question 212

Butanone is a four-carbon compound with the functional group

Select the correct answer:
  • Aldehyde
  • Ketone
  • Carboxylic acid
  • More than one of the above
  • None of the above
Original Q.122 · p44_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.123
Question 213

What is the function of meristematic tissue in plants ?

Select the correct answer:
  • Protection
  • Growth
  • Support
  • More than one of the above
  • None of the above
Original Q.123 · p44_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.124
Question 214

What is the work to be done to increase the velocity of a car from 30 km h^-1 to 60 km h^-1 if the mass of the car is 1500 kg?

Select the correct answer:
  • 156250 J
  • 156650 J
  • 800 J
  • More than one of the above
  • None of the above
Original Q.124 · p44_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.125
Question 215

Lichens are sensitive to which air pollutant?

Select the correct answer:
  • Carbon monoxide
  • Methane
  • Sulphur dioxide
  • More than one of the above
  • None of the above
Original Q.125 · p46_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.126
Question 216

In which of the following sphere, weather phenomenon occurs ?

Select the correct answer:
  • Troposphere
  • Stratosphere
  • Ionosphere
  • More than one of the above
  • None of the above
Original Q.126 · p46_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.127
Question 217

The gap between two neurons is called as

Select the correct answer:
  • synapse
  • axon
  • dendrite
  • More than one of the above
  • None of the above
Original Q.127 · p46_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.128
Question 218

Which of the following represents the correct electronic configuration of nitrogen ?

Select the correct answer:
  • 2, 8, 7
  • 2, 8, 5
  • 2, 5
  • More than one of the above
  • None of the above
Original Q.128 · p46_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.129
Question 219

Which of the following constitutes a food chain ?

Select the correct answer:
  • Grass, goat and human
  • Goat, cow and elephant
  • Grass, wheat and mango
  • More than one of the above
  • None of the above
Original Q.129 · p46_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.130
Question 220

The magnetic field lines around a straight current carrying conductor are

Select the correct answer:
  • Ellipses
  • Parallel lines
  • Concentric circles
  • More than one of the above
  • None of the above
Original Q.130 · p46_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.131
Question 221

What happens when dilute hydrochloric acid is added to iron fillings ?

Select the correct answer:
  • Chlorine gas and iron hydroxide are produced
  • No reaction takes place
  • Hydrogen gas and iron chloride are produced
  • More than one of the above
  • None of the above
Original Q.131 · p46_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.132
Question 222

The kidneys in human beings are a part of the system for

Select the correct answer:
  • excretion
  • respiration
  • nutrition
  • More than one of the above
  • None of the above
Original Q.132 · p48_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.133
Question 223

Which of the following terms does not represent electrical power in a circuit?

Select the correct answer:
  • IR²
  • VI
  • I²R
  • More than one of the above
  • None of the above
Original Q.133 · p48_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.134
Question 224

Which of the following is not a characteristic of solids ?

Select the correct answer:
  • Ability to flow easily
  • Molecules closely packed
  • Definite shape
  • More than one of the above
  • None of the above
Original Q.134 · p48_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.135
Question 225

The phenomenon due to which the sky appears blue is

Select the correct answer:
  • Dispersion
  • Reflection
  • Scattering
  • More than one of the above
  • None of the above
Original Q.135 · p48_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.136
Question 226

Starting from a stationary position, Rahul pedals his bicycle to attain a velocity of 6 m s^-1 in 30 s. Then he applies brakes such that the velocity of the bicycle comes down to 4 m s^-1 in the next 5 s. Calculate the acceleration of the bicycle in both the cases.

Select the correct answer:
  • 0.2 m s^-2 and -0.4 m s^-2
  • 1.5 m s^-2 and 4 m s^-2
  • 0.8 m s^-2 and -0.6 m s^-2
  • More than one of the above
  • None of the above
Original Q.136 · p48_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.137
Question 227

Which of the following statements about permanent tissues is correct ?

Select the correct answer:
  • They are only found in young plants
  • They are capable of rapid cell division
  • They lose the ability to divide
  • More than one of the above
  • None of the above
Original Q.137 · p48_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.138
Question 228

Which of the following is a characteristic property of acids ?

Select the correct answer:
  • Have a pH greater than 7
  • Turn blue litmus paper red
  • Turn red litmus paper blue
  • More than one of the above
  • None of the above
Original Q.138 · p50_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.139
Question 229

According to Newton’s second law of motion, the acceleration of an object is directly proportional to the

Select the correct answer:
  • Force acting on the object
  • Inverse of the mass of the object
  • Mass of the object
  • More than one of the above
  • None of the above
Original Q.139 · p50_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.140
Question 230

Which of the following is a plant hormone ?

Select the correct answer:
  • Gibberellin
  • Cytokinin
  • Auxin
  • More than one of the above
  • None of the above
Original Q.140 · p50_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.141
Question 231

What is the process of changing a substance directly from solid to gas called ?

Select the correct answer:
  • Evaporation
  • Sublimation
  • Melting
  • More than one of the above
  • None of the above
Original Q.141 · p50_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.142
Question 232

The anther contains

Select the correct answer:
  • ovules
  • pollen grains
  • sepals
  • More than one of the above
  • None of the above
Original Q.142 · p50_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.143
Question 233

What is the common name of calcium hydroxide ?

Select the correct answer:
  • Baking soda
  • Lime water
  • Slaked lime
  • More than one of the above
  • None of the above
Original Q.143 · p50_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.144
Question 234

Who discovered the cell for the first time ?

Select the correct answer:
  • Anton van Leeuwenhoek
  • Rudolf Virchow
  • Robert Hooke
  • More than one of the above
  • None of the above
Original Q.144 · p52_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.145
Question 235

The SI unit of work is

Select the correct answer:
  • Newton
  • Watt
  • Joule
  • More than one of the above
  • None of the above
Original Q.145 · p52_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.146
Question 236

Which of the following is not a physical change ?

Select the correct answer:
  • Burning of coal
  • Dissolving salt in water
  • Melting of ice
  • More than one of the above
  • None of the above
Original Q.146 · p52_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.147
Question 237

Which of the following is not a vector borne disease ?

Select the correct answer:
  • Dengue
  • Tuberculosis
  • Malaria
  • More than one of the above
  • None of the above
Original Q.147 · p52_L.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.148
Question 238

What happens when light enters a glass slab from air ?

Select the correct answer:
  • It bends away from the normal
  • It undergoes total internal reflection
  • It bends towards the normal
  • More than one of the above
  • None of the above
Original Q.148 · p52_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.149
Question 239

Which of the following methods is suitable for preventing an iron frying pan from rusting ?

Select the correct answer:
  • Applying paint
  • Applying a coating of zinc
  • Applying grease
  • More than one of the above
  • None of the above
Original Q.149 · p52_R.txt · Class 6-8 · 19 Jul 2024
BPSC TRE Maths & Science PYQ
TRE-3 Re-exam • Science • Official re-exam • Q.150
Question 240

The acceleration due to gravity on the surface of the earth is approximately

Select the correct answer:
  • 10 m/s²
  • 6.4 m/s²
  • 9.8 m/s²
  • More than one of the above
  • None of the above
Original Q.150 · p52_R.txt · Class 6-8 · 19 Jul 2024

Source & Verification

The question bank is built from the three Maths & Science source papers used for extraction. English wording is preserved; only obvious PDF/scan typography such as flattened superscripts, fractions, square roots and rupee symbols was normalized for readable web display.

BPSC TRE Maths & Science PYQ – Frequently Asked Questions

How many BPSC TRE Maths & Science PYQs are included?

The bank contains 240 subject questions in total: 80 from each of the three included Class 6–8 source sittings.

How are Mathematics and Science questions divided?

There are 120 Mathematics questions and 120 Science questions. In each paper, Mathematics is Q.71–110 and Science is Q.111–150.

Which TRE papers are included?

The bank includes TRE-2 dated 9 December 2023, TRE-3 Original dated 15 March 2024, and the TRE-3 Re-Exam dated 19 July 2024.

Why is the March 2024 TRE-3 paper included if it was cancelled?

It remains useful as a previous-question practice source, but the page labels it as a cancelled sitting so it is not confused with the official July 2024 re-exam.

Are correct answers included on this page?

No. This version preserves the extracted questions and A–E options only. No answer has been invented or inferred without mapping the relevant official answer keys.

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