Find the mean proportional between 32 and 50. MCQ with Answer and Explanation

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Find the mean proportional between 32 and 50.

A. 82

B. 43

C. 80

D. 40

Answer: Option D

Solution (By JKSSB Mock Tests)

Mean proportional = √(32 × 50) = √(1600) = 40.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 5:8 and b:c = 8:9, then a:b:c = ?

A. 10:16:18

B. 5:9:9

C. 5:8:9

D. 4:8:10

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 5:8, b:c = 8:9 ⇒ a:b:c = 5:8:9.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 3:3 and b:c = 3:10, then a:b:c = ?

A. 3:3:10

B. 3:4:10

C. 2:3:11

D. 6:6:20

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 3:3, b:c = 3:10 ⇒ a:b:c = 3:3:10.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 2:8 and b:c = 8:5, then a:b:c = ?

A. 4:16:10

B. 2:8:5

C. 1:8:6

D. 2:9:5

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 2:8, b:c = 8:5 ⇒ a:b:c = 2:8:5.

This question belongs to: Maths Ratio and Proportion

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