Ratio of present ages of A and B is 4:4. After 6 years, the ratio becomes 5:5. Present age of A is? MCQ with Answer and Explanation

Ratio of present ages of A and B is 4:4. After 6 years, the ratio becomes 5:5. Present age of A is?

A. 168 years

B. 89 years

C. 84 years

D. 81 years

Answer: Option C

Let ages 4k and 4k. Then (4k + 6)/(4k + 6) = 5/5. Solving gives k ≈ 21, age of A = 4*21 = 84.

This question belongs to: Maths Ratio and Proportion

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Question #1 Report Error

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. 143 years

B. 138 years

C. 276 years

D. 134 years

Correct Answer: Option B

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 Report Error

Two numbers are in the ratio 11:13 and their sum is 148. Find the numbers.

A. 96 and 67

B. 66 and 78

C. 132 and 156

D. 50 and 90

Correct Answer: Option B

Explanation:
Numbers = 11k and 13k. 11k + 13k = 148 ⇒ k = 6. Thus, numbers are 66 and 78.

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

Two numbers are in the ratio 14:6 and their sum is 644. Find the numbers.

A. 462 and 176

B. 433 and 198

C. 448 and 192

D. 896 and 384

Correct Answer: Option C

Explanation:
Numbers = 14k and 6k. 14k + 6k = 644 ⇒ k = 32. Thus, numbers are 448 and 192.

This question belongs to: Maths Ratio and Proportion