If a:b = 3:10 and b:c = 10:11, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 3:10 and b:c = 10:11, then a:b:c = ?

A. 3:11:11

B. 3:10:11

C. 6:20:22

D. 2:10:12

Answer: Option B

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 3:10, b:c = 10:11 ⇒ a:b:c = 3:10:11.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

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

A. 6:6:6

B. 14:12:10

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

Question #2

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

A. 12:8:12

B. 6:5:6

C. 6:4:6

D. 5:4:7

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Correct Answer: Option C

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

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 4:6 and b:c = 6:9, then a:b:c = ?

A. 3:6:10

B. 4:6:9

C. 8:12:18

D. 4:7:9

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 4:6, b:c = 6:9 ⇒ a:b:c = 4:6:9.

This question belongs to: Maths Ratio and Proportion

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