If a:b = 4:3 and b:c = 3:6, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 4:3 and b:c = 3:6, then a:b:c = ?

A. 3:3:7

B. 4:3:6

C. 8:6:12

D. 4:4:6

Answer: Option B

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 4:3, b:c = 3:6 ⇒ a:b:c = 4:3:6.

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 = 8:5, then a:b:c = ?

A. 10:16:10

B. 5:8:5

C. 4:8:6

D. 5:9:5

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Correct Answer: Option B

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

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in the ratio 15:9 and their sum is 542. Find the numbers.

A. 320 and 205

B. 660 and 396

C. 330 and 198

D. 342 and 171

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Correct Answer: Option C

Explanation:
Numbers = 15k and 9k. 15k + 9k = 542 ⇒ k = 22. Thus, numbers are 330 and 198.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 7:6 and b:c = 6:5, then a:b:c = ?

A. 14:12:10

B. 6:6:6

C. 7:7:5

D. 7:6:5

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 7:6, b:c = 6:5 ⇒ a:b:c = 7:6:5.

This question belongs to: Maths Ratio and Proportion

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