Question

Estimate the square root of 24 to the nearest whole number.

• A. 3
• B. 4
• C. 5
• D. 6

Answer 1

The correct option is C

5

Find 2 consecutive perfect squares between which 24 lies.
$16<24<25$
Taking square roots, we get
$4<\sqrt{24}<5$
Since 24 is closer to 25 than 16.
Therefore, $\sqrt{24}\simeq 5$.