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SSC Selection Post 2024 PYQ — Question 66

SSC Selection Post - Graduation Level - 26 June 2024 - Shift 3 • Quantitative Aptitude • Q66

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If 1+x39\sqrt{1+{x^3\over9}} = 5, then the value of x is equal to:

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Correct answer: C

Explanation

The correct answer is option 3 i.e. 6.

√(1 + x3/9) = 5

⇒ 1 + x3/9 = 25

⇒ x3/9 = 24

⇒ x3 = 216

⇒ x = ∛216 = 6