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SSC CGL 2025 PYQ — Question 54

SSC CGL - 14 Sep 2025 - Shift 3 • Quantitative Aptitude • Q54

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Given, a =3 \sqrt{3}, what is (a + 1)2 + (a - 1)2?

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Correct answer: A

Explanation

The correct answer is option 1 i.e. 8.

(a + 1)2 + (a - 1)2 = 2(a2 + 12) = 2a2 + 2

Here, a = √3 ⇒ a2 = 3

2a2 + 2 = 2(3) + 2 = 8