Exams › SSC CGL (Prelims) › General

Given a = 0.01, b = 0.02 and c = -0.03 with a + b + c = 0, evaluate (a^3 + b^3 + c^3) divided by (3abc).

1. -1
2. 0
3. 1
4. 2

Correct answer: 1

Solution

When a + b + c = 0, the identity gives a^3 + b^3 + c^3 = 3abc. Dividing by 3abc therefore yields exactly 1.

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