The present ages of A and B are in the ratio 5 : 7. After 6 years, the ratio will be 3 : 4. What is B's present age?

A. 28 years

B. 35 years

C. 49 years

D. 42 years

Doubtly AI Asked 27 Oct 2026 AI-generated · not yet verified ssc cpo Save WhatsApp Report

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Answer: D. 42 years

Answer: (D) 42 years

\(\frac{5x + 6}{7x + 6} = \frac{3}{4}\) ⇒ \(20x + 24 = 21x + 18\) ⇒ \(x = 6\).

B = 7 × 6 = 42 years (A = 30). Check: 36 : 48 = 3 : 4.

Doubtly AI · 27 Oct 2026 AI-generated · not yet verified Report

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