Find the mean proportional between 34 and 17. MCQ with Answer and Explanation

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Find the mean proportional between 34 and 17.

A. 27

B. 24

C. 51

D. 48

Answer: Option B

Solution (By JKSSB Mock Tests)

Mean proportional = √(34 × 17) = √(578) = 24.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 3:10 and b:c = 10:5, then a:b:c = ?

A. 6:20:10

B. 2:10:6

C. 3:11:5

D. 3:10:5

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 3:10, b:c = 10:5 ⇒ a:b:c = 3:10:5.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 7:7 and b:c = 7:9, then a:b:c = ?

A. 14:14:18

B. 7:8:9

C. 6:7:10

D. 7:7:9

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 7:7, b:c = 7:9 ⇒ a:b:c = 7:7:9.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 2:5 and b:c = 5:7, then a:b:c = ?

A. 2:6:7

B. 4:10:14

C. 1:5:8

D. 2:5:7

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 2:5, b:c = 5:7 ⇒ a:b:c = 2:5:7.

This question belongs to: Maths Ratio and Proportion

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