Find the mean proportional between 22 and 51. MCQ with Answer and Explanation

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Find the mean proportional between 22 and 51.

A. 73

B. 66

C. 36

D. 33

Answer: Option D

Solution (By JKSSB Mock Tests)

Mean proportional = √(22 × 51) = √(1122) = 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. 14

B. 36

C. 22

D. 11

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Correct Answer: Option D

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

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 8:4 and b:c = 4:6, then a:b:c = ?

A. 7:4:7

B. 8:4:6

C. 16:8:12

D. 8:5:6

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 8:4, b:c = 4:6 ⇒ a:b:c = 8:4:6.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 6:10 and b:c = 10:6, then a:b:c = ?

A. 6:10:6

B. 12:20:12

C. 5:10:7

D. 6:11:6

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 6:10, b:c = 10:6 ⇒ a:b:c = 6:10:6.

This question belongs to: Maths Ratio and Proportion

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