Find the mean proportional between 11 and 45. MCQ with Answer and Explanation

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Find the mean proportional between 11 and 45.

A. 44

B. 25

C. 22

D. 56

Answer: Option C

Solution (By JKSSB Mock Tests)

Mean proportional = √(11 × 45) = √(495) = 22.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

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

A. 6:9:8

B. 5:8:9

C. 12:16:16

D. 6:8:8

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Correct Answer: Option D

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

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 2:6 and b:c = 6:12, then a:b:c = ?

A. 1:6:13

B. 2:6:12

C. 2:7:12

D. 4:12:24

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 2:6, b:c = 6:12 ⇒ a:b:c = 2:6:12.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 4:6 and b:c = 6:12, then a:b:c = ?

A. 4:7:12

B. 8:12:24

C. 3:6:13

D. 4:6:12

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 4:6, b:c = 6:12 ⇒ a:b:c = 4:6:12.

This question belongs to: Maths Ratio and Proportion

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