Ratio of present ages of A and B is 7:6. After 11 years, the ratio becomes 9:9. Present age of A is? MCQ with Answer and Explanation

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Ratio of present ages of A and B is 7:6. After 11 years, the ratio becomes 9:9. Present age of A is?

A. 98 years

B. 196 years

C. 103 years

D. 95 years

Answer: Option A

Solution (By JKSSB Mock Tests)

Let ages 7k and 6k. Then (7k + 11)/(6k + 11) = 9/9. Solving gives k ≈ 14, age of A = 7*14 = 98.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 2:4 and b:c = 4:10, then a:b:c = ?

A. 2:5:10

B. 1:4:11

C. 2:4:10

D. 4:8:20

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 2:4, b:c = 4:10 ⇒ a:b:c = 2:4:10.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in the ratio 10:13 and their sum is 454. Find the numbers.

A. 204 and 226

B. 174 and 258

C. 190 and 247

D. 380 and 494

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Correct Answer: Option C

Explanation:
Numbers = 10k and 13k. 10k + 13k = 454 ⇒ k = 19. Thus, numbers are 190 and 247.

This question belongs to: Maths Ratio and Proportion

Question #3

Two numbers are in the ratio 13:4 and their sum is 771. Find the numbers.

A. 578 and 197

B. 1170 and 360

C. 609 and 170

D. 585 and 180

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Correct Answer: Option D

Explanation:
Numbers = 13k and 4k. 13k + 4k = 771 ⇒ k = 45. Thus, numbers are 585 and 180.

This question belongs to: Maths Ratio and Proportion

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