What number should be divided by √(0.25) to give the result as 25? · ABC26GN1374
Subject: General Aptitude · Chapter: Square Roots and Cube Roots · Exam: C.B.I. 2003
What number should be divided by $\sqrt{0.25}$ to give the result as 25?
(a)12.5
(b)25
(c)50
(d)125
Answer
Answer (as printed): A
Explanation
Let the required number be $x$. Then, $\frac{x}{\sqrt{0.25}}=25$ $$\begin{aligned} & \Leftrightarrow \frac{x}{0.5}=25 \\ & \Leftrightarrow x=25 \times 0.5=12.5 . \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.