Reasoning & Maths Previous Year Questions (page 2)
54 Reasoning & Maths (General Studies) questions asked in BPSC TRE previous year papers, each with the correct answer and explanation. Read them free on UTpaper, or attempt the full papers as timed online tests.
Q51BPSC TRE 3.0 (2024) Computer Science Class 11-12
A piece of wire of resistance R is cut into 5 equal parts. These parts are then connected in parallel. If the equivalent resistance of the combination is R', then the ratio R/R' is ___
A1/25
B1/5
C25
DMore than one of the above
ENone of the above
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Correct answer: (C) 25
Explanation
Each part has resistance R/5; five equal parts in parallel give R' = (R/5)/5 = R/25, so R/R' = 25.
Q52BPSC TRE 1.0 (2023) Computer Science Class 11-12
The distance between Delhi and Agra is 200 km. Suppose you are travelling from Delhi to Agra by a car. If you can maintain an average speed of 90 km/hr for 120 km and 40 km/hr for the remaining distance, how much time will you take, on average, to reach Agra?
A3 hr 20 min
B3 hr 30 min
C4 hr 45 min
DMore than one of the above
ENone of the above
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Correct answer: (A) 3 hr 20 min
Explanation
120 km at 90 km/h takes 4/3 h = 1 h 20 min; the remaining 80 km at 40 km/h takes 2 h; total 3 h 20 min.
Q53BPSC TRE 1.0 (2023) Computer Science Class 11-12
10% loss on selling price is what percent loss on cost price?
A9 1/11 %
B9 2/11 %
C10%
DMore than one of the above
ENone of the above
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Correct answer: (A) 9 1/11 %
Explanation
Let SP = 100; loss = 10, so CP = 110. Loss on CP = 10/110 × 100 = 100/11 = 9 1/11 %.
Q54BPSC TRE 2.0 (2023) Computer Science Class 11-12
The average of 7 consecutive numbers is 20. The largest of these numbers is
A20
B21
C23
DMore than one of the above
ENone of the above
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Correct answer: (A) 20
Explanation
Official BPSC answer key: (A). By calculation the 7 consecutive numbers are 17, 18, …, 23 (average 20), so the largest is 23, option (C).
How to use these BPSC TRE General Studies questions
Every question here was asked in a real BPSC TRE paper; the paper and shift are shown on the card, and the number opens the question on its own page. Try each one before tapping Show answer, then attempt the full BPSC TRE papers as timed tests to check your speed under exam conditions.