If x is 80% of y, what percentage of x is y? MCQ with Answer and Explanation

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If x is 80% of y, what percentage of x is y?

A. 80%

B. 100%

C. 125%

D. 120%

Answer: Option C

Solution (By JKSSB Mock Tests)

x = 0.8y. Therefore, y = x / 0.8 = 1.25x. Thus, y is 125% of x.

This question belongs to: Maths Percentage

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Question #1

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A's salary 20% less than B's. By what % must A's salary be raised to equal B's?

A. 25%

B. 30%

C. 20%

D. 22.5%

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Correct Answer: Option A

Explanation:
A=80, B=100. Increase needed = (20/80)×100 = 25%.

This question belongs to: Maths Percentage

Question #2

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A man gave 25% to wife, 20% of remainder to son, 25% of remainder to daughter, rest Rs. 9000 to charity. Total amount:

A. 18000

B. 20000

C. 24000

D. 22000

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Correct Answer: Option B

Explanation:
Wife 25%, left 75%. Son 20% of 75%=15%, left 60%. Daughter 25% of 60%=15%, left 45% = 9000 → total = 20000.

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Question #3

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A student has to secure 33% marks to pass. He gets 120 marks and fails by 12 marks. Find the maximum marks.

A. 500

B. 350

C. 400

D. 450

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Correct Answer: Option C

Explanation:
Passing marks = 120 + 12 = 132. 33% of Maximum = 132. Maximum = 132 * (100 / 33) = 400.

This question belongs to: Maths Percentage

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