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
Solution:
(c) $1 \frac{1}{2}$
$\sqrt{2 \frac{1}{4}}=\sqrt{\frac{9}{4}}=\frac{\sqrt{9}}{\sqrt{4}}=\frac{\sqrt{3 \times 3}}{\sqrt{2 \times 2}}=\frac{3}{2}=1 \frac{1}{2}$