Question

The square of a number is 64. What is the cube root of that number?

• A. 1
• B. 2
• C. 8
• D. 4

Answer 1

The correct option is B

2

Let the number be $x$.
Given $x^2=64$
$⟹x=\sqrt{64}=8$

$\sqrt[3]{3x}=\sqrt[3]{38}=2$.