ABC26GN1492 · Square Roots and Cube Roots

Subject: General Aptitude · Chapter: Square Roots and Cube Roots · Exam: · Marks: · Difficulty:

What is 5 + 10 equal to? [CDS 2016] 5 5 − 2 20 − 32 + 50 QUANTITATIVE APTITUDE

(a)5

(b)5 2

(c)5 5

(d)5 3 ( 0.75 ) + 0.75 + 0.75 2 + 1

Answer

Answer (as printed): D

Explanation

Given 5 5 − 2 20 − 32 + 50 5 + 10 = 5 5 − 2×2 5 − 2×2 2 + 5 2 5 + 10 = 5 5 −4 5 −4 2 +5 2 5 5+ 2 ( ) 5 + 10 = = = 5 5+ 2 5+ 2 ( 0.75 ) 3  + 0.75 + ( 0.75 ) + 1 2

Explanation as extracted from the printed page; notation may be imperfect.

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