If a:b = 3:6 and b:c = 6:9, then a:b:c = ? MCQ with Answer and Explanation

Question

Share Report Error

If a:b = 3:6 and b:c = 6:9, then a:b:c = ?

A. 6:12:18

B. 3:6:9

C. 2:6:10

D. 3:7:9

Answer: Option B

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 3:6, b:c = 6:9 ⇒ a:b:c = 3:6:9.

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

Share Report

Two numbers are in the ratio 14:7 and their sum is 130. Find the numbers.

A. 84 and 42

B. 70 and 52

C. 168 and 84

D. 110 and 31

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Numbers = 14k and 7k. 14k + 7k = 130 ⇒ k = 6. Thus, numbers are 84 and 42.

This question belongs to: Maths Ratio and Proportion

Question #2

Share Report

If a:b = 7:4 and b:c = 4:10, then a:b:c = ?

A. 14:8:20

B. 6:4:11

C. 7:4:10

D. 7:5:10

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Combine ratios: a:b = 7:4, b:c = 4:10 ⇒ a:b:c = 7:4:10.

This question belongs to: Maths Ratio and Proportion

Question #3

Share Report

If a:b = 5:9 and b:c = 9:6, then a:b:c = ?

A. 5:9:6

B. 5:10:6

C. 4:9:7

D. 10:18:12

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Combine ratios: a:b = 5:9, b:c = 9:6 ⇒ a:b:c = 5:9:6.

This question belongs to: Maths Ratio and Proportion

Explore All Ratio and Proportion MCQs