Find the mean proportional between 16 and 72. MCQ with Answer and Explanation

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Find the mean proportional between 16 and 72.

A. 33

B. 66

C. 36

D. 88

Answer: Option A

Solution (By JKSSB Mock Tests)

Mean proportional = √(16 × 72) = √(1152) = 33.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

Find the mean proportional between 4 and 32.

A. 22

B. 11

C. 14

D. 36

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Correct Answer: Option B

Explanation:
Mean proportional = √(4 × 32) = √(128) = 11.

This question belongs to: Maths Ratio and Proportion

Question #2

Milk and water are in ratio 7:6 in a 528 L mixture. Quantity of milk?

A. 244 L

B. 284 L

C. 334 L

D. 568 L

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Correct Answer: Option B

Explanation:
Total parts = 13. Milk = [7 / (7+6)] × 528 = 284 L.

This question belongs to: Maths Ratio and Proportion

Question #3

Two numbers are in the ratio 6:5 and their sum is 616. Find the numbers.

A. 328 and 295

B. 357 and 269

C. 672 and 560

D. 336 and 280

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Correct Answer: Option D

Explanation:
Numbers = 6k and 5k. 6k + 5k = 616 ⇒ k = 56. Thus, numbers are 336 and 280.

This question belongs to: Maths Ratio and Proportion

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