Question

Mark (✓) against the correct answer
$\sqrt{2\frac{1}{4}}=?$
(a) $2\frac{1}{2}$
(b) $1\frac{1}{4}$
(c) $1\frac{1}{2}$
(d) none of these

Answer 1

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


$\sqrt{2\frac{1}{4}}=\sqrt{\frac{9}{4}}=\frac{\sqrt{9}}{\sqrt{4}}=\frac{\sqrt{3\times 3}}{\sqrt{2\times 2}}=\frac{3}{2}=1\frac{1}{2}$