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

Question

Share Report Error

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

A. 14:14:14

B. 6:7:8

C. 7:7:7

D. 7:8:7

Answer: Option C

Solution (By JKSSB Mock Tests)

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

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

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

A. 138 years

B. 276 years

C. 134 years

D. 143 years

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Let ages 6k and 7k. Then (6k + 7)/(7k + 7) = 8/8. Solving gives k ≈ 23, age of A = 6*23 = 138.

This question belongs to: Maths Ratio and Proportion

Question #2

Share Report

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

A. 16:20:20

B. 8:11:10

C. 8:10:10

D. 7:10:11

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

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

This question belongs to: Maths Ratio and Proportion

Question #3

Share Report

If a:b = 2:4 and b:c = 4:6, then a:b:c = ?

A. 1:4:7

B. 2:4:6

C. 2:5:6

D. 4:8:12

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Combine ratios: a:b = 2:4, b:c = 4:6 ⇒ a:b:c = 2:4:6.

This question belongs to: Maths Ratio and Proportion

Explore All Ratio and Proportion MCQs