If a + b = 8 and \(a^3 + b^3 = 152\), what is the value of ab?

A. 15

B. 12

C. 16

D. 20

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

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Answer: A. 15

Answer: (A) 15

\(a^3 + b^3 = (a + b)^3 - 3ab(a + b)\): 152 = 512 − 24ab, so ab = 360 ÷ 24 = 15.

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

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