The average weight of A, B and C is 45 kg. The average weight of A and B is 40 kg and that of B and C is 43 kg. What is B's weight?

A. 26 kg

B. 35 kg

C. 17 kg

D. 31 kg

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

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Answer: D. 31 kg

Answer: (D) 31 kg

A + B + C = 135, A + B = 80 and B + C = 86.

B = (A + B) + (B + C) − (A + B + C) = 80 + 86 − 135 = 31 kg.

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

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