A student answered 22 out of 30 correctly. Percentage correct: MCQ with Answer and Explanation

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A student answered 22 out of 30 correctly. Percentage correct:

A. 73.33%

B. 75%

C. 72%

D. 70%

Answer: Option A

Solution (By JKSSB Mock Tests)

(22/30)×100 ≈ 73.33%.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

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Computer price reduced 25%, sale increased 100%. Net effect on revenue:

A. 25% increase

B. 60% increase

C. 40% increase

D. 50% increase

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Correct Answer: Option D

Explanation:
0.75 × 2 = 1.5, increase 50%.

This question belongs to: Maths Percentage

Question #2

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A number decreased by 12% becomes 176. Original number is:

A. 195

B. 200

C. 210

D. 205

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Correct Answer: Option B

Explanation:
0.88x = 176 → x = 200.

This question belongs to: Maths Percentage

Question #3

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A and B together can do a piece of work in 12 days. B and C together in 15 days. C and A together in 20 days. How long will A alone take to do the work?

A. 40 days

B. 60 days

C. 20 days

D. 30 days

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Correct Answer: Option D

Explanation:
2(A+B+C) = 1/12 + 1/15 + 1/20 = (5+4+3)/60 = 12/60 = 1/5 → A+B+C = 1/10. A's work = (A+B+C) - (B+C) = 1/10 - 1/15 = (3-2)/30 = 1/30. So A takes 30 days.

This question belongs to: Maths Percentage

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