If a:b = 7:6 and b:c = 6:7, then a:b:c = ? MCQ with Answer and Explanation

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

A. 14:12:14

B. 6:6:8

C. 7:6:7

D. 7:7:7

Answer: Option C

Solution (By JKSSB Mock Tests)

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

This question belongs to: Maths Ratio and Proportion

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Question #1

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Two numbers are in the ratio 4:10 and their sum is 595. Find the numbers.

A. 168 and 420

B. 336 and 840

C. 184 and 396

D. 158 and 436

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Correct Answer: Option A

Explanation:
Numbers = 4k and 10k. 4k + 10k = 595 ⇒ k = 42. Thus, numbers are 168 and 420.

This question belongs to: Maths Ratio and Proportion

Question #2

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Two numbers are in the ratio 11:15 and their sum is 450. Find the numbers.

A. 214 and 229

B. 374 and 510

C. 187 and 255

D. 181 and 267

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Correct Answer: Option C

Explanation:
Numbers = 11k and 15k. 11k + 15k = 450 ⇒ k = 17. Thus, numbers are 187 and 255.

This question belongs to: Maths Ratio and Proportion

Question #3

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If a:b = 5:4 and b:c = 4:4, then a:b:c = ?

A. 5:5:4

B. 4:4:5

C. 10:8:8

D. 5:4:4

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 5:4, b:c = 4:4 ⇒ a:b:c = 5:4:4.

This question belongs to: Maths Ratio and Proportion

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