Ratio of present ages of A and B is 4:4. After 6 years, the ratio becomes 7:7. Present age of A is? MCQ with Answer and Explanation

Question

Share Report Error

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

A. 96 years

B. 200 years

C. 100 years

D. 105 years

Answer: Option C

Solution (By JKSSB Mock Tests)

Let ages 4k and 4k. Then (4k + 6)/(4k + 6) = 7/7. Solving gives k ≈ 25, age of A = 4*25 = 100.

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 = 5:9 and b:c = 9:11, then a:b:c = ?

A. 5:9:11

B. 4:9:12

C. 5:10:11

D. 10:18:22

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Combine ratios: a:b = 5:9, b:c = 9:11 ⇒ a:b:c = 5:9:11.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in the ratio 11:15 and their sum is 450. Find the numbers.

A. 187 and 255

B. 374 and 510

C. 181 and 267

D. 214 and 229

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Numbers = 11k and 15k. 11k + 15k = 450 ⇒ k = 17. Thus, numbers are 187 and 255.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 4:3 and b:c = 3:12, then a:b:c = ?

A. 4:3:12

B. 8:6:24

C. 4:4:12

D. 3:3:13

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Combine ratios: a:b = 4:3, b:c = 3:12 ⇒ a:b:c = 4:3:12.

This question belongs to: Maths Ratio and Proportion

Explore All Ratio and Proportion MCQs