What percentage of 50 is 20? MCQ with Answer and Explanation

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What percentage of 50 is 20?

A. 40%

B. 30%

C. 50%

D. 20%

Answer: Option A

Solution (By JKSSB Mock Tests)

(20 / 50) * 100 = 40%.

This question belongs to: Maths Percentage

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Question #1

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90 is what percent of 150?

A. 70%

B. 60%

C. 65%

D. 55%

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Correct Answer: Option B

Explanation:
(90/150) × 100 = 60%.

This question belongs to: Maths Percentage

Question #2

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If the price of petrol increases by 40%, by what percent must a person reduce consumption so that expenditure increases by only 12%?

A. 15%

B. 20%

C. 22%

D. 18%

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Correct Answer: Option B

Explanation:
1.4 × x = 1.12 → x = 0.8, reduction 20%.

This question belongs to: Maths Percentage

Question #3

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Mixture 40 L milk-water with 10% water. Water added to make 20%:

A. 8 L

B. 6 L

C. 5 L

D. 4 L

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Correct Answer: Option C

Explanation:
Water=4 L, milk=36 L. New total = 36/0.8 = 45 L, water added = 5 L.

This question belongs to: Maths Percentage

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