ABC26GN1486 · Square Roots and Cube Roots
Subject: General Aptitude · Chapter: Square Roots and Cube Roots · Exam: · Marks: · Difficulty:
$\sqrt{24 \div 0.5+1}+\sqrt{18 \div 0.6+6}=$ ?
(a)19
(b)13
(c)12
(d)15 [IBPS-RRB Office Assistant (Online) Exam, 2015]
Answer
Explanation
Given $\sqrt{24 \div 0.5+1}+\sqrt{18 \div 0.6+6}$ $$\begin{aligned} & =\sqrt{24 \times \frac{1}{0.5}+1}+\sqrt{18 \times \frac{1}{0.6}+6} \\ & =\sqrt{24 \times \frac{10}{5}+1}+\sqrt{\frac{18 \times 10}{6}+6} \\ & =\sqrt{48+1}+\sqrt{30+6} \\ & \sqrt{49}+\sqrt{36}=7+6=13 \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.
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