If a:b = 8:9 and b:c = 9:6, then a:b:c = ? MCQ with Answer and Explanation

Question

Share Report Error

If a:b = 8:9 and b:c = 9:6, then a:b:c = ?

A. 7:9:7

B. 8:10:6

C. 8:9:6

D. 16:18:12

Answer: Option C

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 8:9, b:c = 9:6 ⇒ a:b:c = 8:9:6.

This question belongs to: Maths Ratio and Proportion

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Ratio and Proportion Questions

Question #1

If a:b = 8:10 and b:c = 10:6, then a:b:c = ?

A. 16:20:12

B. 8:10:6

C. 8:11:6

D. 7:10:7

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Combine ratios: a:b = 8:10, b:c = 10:6 ⇒ a:b:c = 8:10:6.

This question belongs to: Maths Ratio and Proportion

Question #2

Ratio of present ages of A and B is 3:8. After 10 years, the ratio becomes 4:10. Present age of A is?

A. 56 years

B. 51 years

C. 44 years

D. 102 years

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Let ages 3k and 8k. Then (3k + 10)/(8k + 10) = 4/10. Solving gives k ≈ 17, age of A = 3*17 = 51.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 5:8 and b:c = 8:12, then a:b:c = ?

A. 10:16:24

B. 4:8:13

C. 5:9:12

D. 5:8:12

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Combine ratios: a:b = 5:8, b:c = 8:12 ⇒ a:b:c = 5:8:12.

This question belongs to: Maths Ratio and Proportion

Explore All Ratio and Proportion MCQs