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SSC Selection Post 2022 PYQ — Question 71

SSC Selection Post - Higher Secondary Level - 01 Aug 2022 - Shift 3 • Quantitative Aptitude • Q71

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 Find the value of 133 + (-8)3 + (-5)3

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Correct answer: A

Explanation

The correct answer is option 1 i.e. 1560.

a = 13, b = - 8, c = - 5

Here, a + b + c = 0 ⇒ 13 + (-8) + (-5) = 0

When a + b + c = 0, then a3 + b3 + c3 = 3abc

133 + (-8)3 + (-5)3 = 3 × 13 × (-8) × (-5) = 3 × 13 × 40 = 1560