Simplify:
(√45 + √20) / √5
Show answer & explanation
Correct answer: C
Explanation
Given:
(√45 + √20) / √5
By the formula:
√a / √b = √(a/b)
√45 = 3√5
√20 = 2√5
(3√5 + 2√5) / √5
= 5√5 / √5
= 5
SSC CHSL - 14 Nov 2025 - Shift 2 • Quantitative Aptitude • Q70
Simplify:
(√45 + √20) / √5
Correct answer: C
Explanation
Given:
(√45 + √20) / √5
By the formula:
√a / √b = √(a/b)
√45 = 3√5
√20 = 2√5
(3√5 + 2√5) / √5
= 5√5 / √5
= 5