25% of A = 40% of B = 1/5 of C. Find A:B:C. MCQ with Answer and Explanation

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25% of A = 40% of B = 1/5 of C. Find A:B:C.

A. 8:5:10

B. 5:8:10

C. 8:10:5

D. 10:8:5

Answer: Option A

Solution (By JKExamLibrary)

Let 0.25A = 0.4B = 0.2C = k. Then A=4k, B=2.5k, C=5k. Multiply by 2: A:B:C = 8:5:10.

This question belongs to: Maths Percentage

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50% of 500 minus a number gives 200. The number:

A. 50

B. 40

C. 45

D. 55

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Correct Answer: Option A

Explanation:
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This question belongs to: Maths Percentage

Question #2 Report Error

Radius of circle decreased 20%. Area decreases by:

A. 32%

B. 36%

C. 38%

D. 34%

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Correct Answer: Option B

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B. No change

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Correct Answer: Option B

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