If (a + b) : (a − b) = 7 : 3, what is a : b?

A. 3 : 2

B. 2 : 5

C. 5 : 2

D. 7 : 3

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

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Answer: C. 5 : 2

Answer: (C) 5 : 2

Shortcut (componendo–dividendo): a : b = (7 + 3) : (7 − 3) = 10 : 4.

So a : b = 5 : 2.

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

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