Find the mean proportional between 7 and 35. MCQ with Answer and Explanation

Question Report Error

Find the mean proportional between 7 and 35.

A. 18

B. 15

C. 42

D. 30

Answer: Option B

Solution (By JKExamLibrary)

Mean proportional = √(7 × 35) = √(245) = 15.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1 Report Error

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

A. 12:16:12

B. 5:8:7

C. 6:8:6

D. 6:9:6

View Answer & Solution Discuss

Correct Answer: Option C

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

This question belongs to: Maths Ratio and Proportion

Question #2 Report Error

Find the mean proportional between 30 and 37.

A. 36

B. 67

C. 66

D. 33

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Correct Answer: Option D

Explanation:
Mean proportional = √(30 × 37) = √(1110) = 33.

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

Find the mean proportional between 33 and 15.

A. 44

B. 22

C. 25

D. 48

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Correct Answer: Option B

Explanation:
Mean proportional = √(33 × 15) = √(495) = 22.

This question belongs to: Maths Ratio and Proportion

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