If a:b = 4:3 and b:c = 3:12, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 4:3 and b:c = 3:12, then a:b:c = ?

A. 4:4:12

B. 8:6:24

C. 3:3:13

D. 4:3:12

Answer: Option D

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 4:3, b:c = 3:12 ⇒ a:b:c = 4:3:12.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

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

A. 3:5:6

B. 3:4:6

C. 2:4:7

D. 6:8:12

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Correct Answer: Option B

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

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 8:3 and b:c = 3:4, then a:b:c = ?

A. 8:4:4

B. 7:3:5

C. 8:3:4

D. 16:6:8

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 8:3, b:c = 3:4 ⇒ a:b:c = 8:3:4.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 2:9 and b:c = 9:4, then a:b:c = ?

A. 1:9:5

B. 4:18:8

C. 2:9:4

D. 2:10:4

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 2:9, b:c = 9:4 ⇒ a:b:c = 2:9:4.

This question belongs to: Maths Ratio and Proportion

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