If a:b = 2:7 and b:c = 7:9, then a:b:c = ? MCQ with Answer and Explanation

Question

Share Report Error

If a:b = 2:7 and b:c = 7:9, then a:b:c = ?

A. 4:14:18

B. 2:7:9

C. 2:8:9

D. 1:7:10

Answer: Option B

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 2:7, b:c = 7:9 ⇒ a:b:c = 2:7:9.

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

Milk and water are in ratio 3:4 in a 437 L mixture. Quantity of milk?

A. 374 L

B. 187 L

C. 250 L

D. 211 L

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Total parts = 7. Milk = [3 / (3+4)] × 437 = 187 L.

This question belongs to: Maths Ratio and Proportion

Question #2

Share Report

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

A. 4:8:4

B. 4:7:4

C. 8:14:8

D. 3:7:5

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

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

This question belongs to: Maths Ratio and Proportion

Question #3

Share Report

If a:b = 8:4 and b:c = 4:6, then a:b:c = ?

A. 8:5:6

B. 16:8:12

C. 7:4:7

D. 8:4:6

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Combine ratios: a:b = 8:4, b:c = 4:6 ⇒ a:b:c = 8:4:6.

This question belongs to: Maths Ratio and Proportion

Explore All Ratio and Proportion MCQs