If a:b = 8:9 and b:c = 9:8, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 8:9 and b:c = 9:8, then a:b:c = ?

A. 8:10:8

B. 7:9:9

C. 8:9:8

D. 16:18:16

Answer: Option C

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 8:9, b:c = 9:8 ⇒ a:b:c = 8:9:8.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

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

A. 7:8:6

B. 14:14:12

C. 6:7:7

D. 7:7:6

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Correct Answer: Option D

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

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in the ratio 10:13 and their sum is 454. Find the numbers.

A. 204 and 226

B. 380 and 494

C. 190 and 247

D. 174 and 258

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Correct Answer: Option C

Explanation:
Numbers = 10k and 13k. 10k + 13k = 454 ⇒ k = 19. Thus, numbers are 190 and 247.

This question belongs to: Maths Ratio and Proportion

Question #3

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

A. 12:12:14

B. 6:7:7

C. 6:6:7

D. 5:6:8

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Correct Answer: Option C

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

This question belongs to: Maths Ratio and Proportion

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