In an exam, 40% failed in Science, 30% in Social, 20% in both. Pass percentage is: MCQ with Answer and Explanation

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In an exam, 40% failed in Science, 30% in Social, 20% in both. Pass percentage is:

A. 45%

B. 40%

C. 55%

D. 50%

Answer: Option D

Solution (By JKSSB Mock Tests)

Failed in at least one = 40+30-20 = 50%, pass = 50%.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

Wage decreased 20% then increased 20%. Loss %:

A. 0%

B. 5%

C. 2%

D. 4%

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Correct Answer: Option D

Explanation:
0.8×1.2 = 0.96, loss 4%.

This question belongs to: Maths Percentage

Question #2

A candidate secures 45% of votes and loses the election by 200 votes. Find the total number of votes cast.

A. 2000

B. 1800

C. 1500

D. 2500

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Correct Answer: Option A

Explanation:
Loser = 45%, Winner = 55%. Difference = 10%. 10% of Total = 200. Total = 2000.

This question belongs to: Maths Percentage

Question #3

A man covers a distance at a speed of 60 kmph and returns back at a speed of 40 kmph. What is his average speed for the whole journey?

A. 50 kmph

B. 52 kmph

C. 48 kmph

D. 55 kmph

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Correct Answer: Option C

Explanation:
Average speed = 2×60×40/(60+40) = 4800/100 = 48 kmph. (Note: Not percentage but included as tough TSD).

This question belongs to: Maths Percentage

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