SarkariPYQ

SSC CGL 2025 PYQ — Question 55

SSC CGL - 16 Sep 2025 - Shift 2 • Quantitative Aptitude • Q55

Back to paper

Simplify: 45+20−5\sqrt{45} + \sqrt{20} - \sqrt{5}

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. 454\sqrt5.

45+20−5\sqrt{45} + \sqrt{20} - \sqrt{5}

=35+25−5=3\sqrt{5} + 2\sqrt{5} - \sqrt{5}

=55−5=5\sqrt{5} - \sqrt{5}

=45=4\sqrt{5}