If a:b = 5:6 and b:c = 6:9, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 5:6 and b:c = 6:9, then a:b:c = ?

A. 5:6:9

B. 4:6:10

C. 10:12:18

D. 5:7:9

Answer: Option A

Solution (By JKExamLibrary)

Combine ratios: a:b = 5:6, b:c = 6:9 ⇒ a:b:c = 5:6:9.

This question belongs to: Maths Ratio and Proportion

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Question #1 Report Error

If a:b = 2:6 and b:c = 6:9, then a:b:c = ?

A. 1:6:10

B. 2:6:9

C. 4:12:18

D. 2:7:9

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 2:6, b:c = 6:9 ⇒ a:b:c = 2:6:9.

This question belongs to: Maths Ratio and Proportion

Question #2 Report Error

If a:b = 8:6 and b:c = 6:10, then a:b:c = ?

A. 7:6:11

B. 16:12:20

C. 8:7:10

D. 8:6:10

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 8:6, b:c = 6:10 ⇒ a:b:c = 8:6:10.

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

If a:b = 3:3 and b:c = 3:6, then a:b:c = ?

A. 3:3:6

B. 2:3:7

C. 3:4:6

D. 6:6:12

View Answer & Solution Discuss

Correct Answer: Option A

Explanation:
Combine ratios: a:b = 3:3, b:c = 3:6 ⇒ a:b:c = 3:3:6.

This question belongs to: Maths Ratio and Proportion

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