ABC26GN1369 · Square Roots and Cube Roots

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

Which number can replace both the question marks in the equation $\frac{4 \frac{1}{2}}{?}=\frac{?}{32}$.

(a)1

(b)7

(c)$7 \frac{1}{2}$

(d)None of these

Answer

Answer (as printed): D

Explanation

Let $\frac{4 \frac{1}{2}}{x}=\frac{x}{32}$. Then, $x^{2}=32 \times \frac{9}{2}=144 \Leftrightarrow x=\sqrt{144}=12$.

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