If x is 50% of y, what percentage of x is y? MCQ with Answer and Explanation

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If x is 50% of y, what percentage of x is y?

A. 200%

B. 100%

C. 150%

D. 250%

Answer: Option A

Solution (By JKSSB Mock Tests)

x = 0.5y. Therefore, y = x / 0.5 = 2x. Thus, y is 200% of x.

This question belongs to: Maths Percentage

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Question #1

A gets 20% more than B, B gets 25% more than C. C=400, A's share:

A. 550

B. 500

C. 600

D. 650

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Correct Answer: Option C

Explanation:
C=400, B=400×1.25=500, A=500×1.2=600.

This question belongs to: Maths Percentage

Question #2

If the price of a book is increased by 20%, its new price is Rs. 180. Original price was:

A. 140

B. 170

C. 160

D. 150

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Correct Answer: Option D

Explanation:
Let original price be P. 1.2P = 180 → P = 150.

This question belongs to: Maths Percentage

Question #3

A gets 25% more than B, B gets 20% more than C. C=500, A's share:

A. 700

B. 750

C. 775

D. 725

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Correct Answer: Option B

Explanation:
C=500, B=600, A=600×1.25=750.

This question belongs to: Maths Percentage

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