4 questions from past BPSC papers, each with the correct answer and an
explanation of why. Free to read — no signup.
How often it has appeared
Paper
67
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70Re
Total
Percentage & Ratio
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Questions
63rd Pre · 2018
A salary is increased 10% then decreased 10%. Net change is:
0%
−1%
+1%
−10%
Why: Successive: a + b + ab/100 = 10 + (−10) + (−100/100) = −1%.
64th Pre · 2018
40% of 250 is:
80
100
120
160
67th Pre · 2022
Two numbers are in the ratio 2:3 and their sum is 50. The larger number is:
20
25
30
35
Why: Sum 5 parts = 50; one part = 10; larger = 30.
69th Pre · 2023
A is 20% more than B. B is what % less than A?
16.67%
20%
25%
15%
Why: B less than A by (20/120)×100 = 16.67%.
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