Allied & ICAR Exam Bank • ALLIED_1408 MCQ • 1 Mark

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Numerical Computation

Question Statement:

If $x + \frac{1}{x} = 4$, the value of $x^2 + \frac{1}{x^2}$ is:

Options:

  • (A) 14
  • (B) 16
  • (C) 18
  • (D) 12

Answer Key:

A

Step-by-Step Solution & Explanation

$x^2 + 1/x^2 = (x + 1/x)^2 - 2 = 16 - 2 = 14$.
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