Mark (✓) against the correct answer

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

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

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