If a:b = 8:10 and b:c = 10:6, then a:b:c = ? MCQ with Answer and Explanation

Question

Share Report Error

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

Answer: Option B

Solution (By JKSSB Mock Tests)

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

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

Share Report

Two numbers are in ratio 11:6. Their difference is 42. What is their sum?

A. 263

B. 527

C. 560

D. 633

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Numbers 11k, 6k. Difference |11-6|k = 42 ⇒ k = 8. Sum = (11+6)k ≈ 527.

This question belongs to: Maths Ratio and Proportion

Question #2

Share Report

If a:b = 4:4 and b:c = 4:9, then a:b:c = ?

A. 4:4:9

B. 8:8:18

C. 3:4:10

D. 4:5:9

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Combine ratios: a:b = 4:4, b:c = 4:9 ⇒ a:b:c = 4:4:9.

This question belongs to: Maths Ratio and Proportion

Question #3

Share Report

Ratio of present ages of A and B is 4:6. After 10 years, the ratio becomes 7:8. Present age of A is?

A. 32 years

B. 64 years

C. 37 years

D. 26 years

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Let ages 4k and 6k. Then (4k + 10)/(6k + 10) = 7/8. Solving gives k ≈ 8, age of A = 4*8 = 32.

This question belongs to: Maths Ratio and Proportion

Explore All Ratio and Proportion MCQs