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If the volume and surface area of a sphere are numerically...

This question belongs to Arithmetic Ability Volume And Surface Area
Volume and Surface Area
?

If the volume and surface area of a sphere are numerically the same, then its radius is :

Answer & Solution
Correct Answer: Option C
$$\eqalign{ & \frac{4}{3}\pi {r^3} = 4\pi {r^2} \cr & \Rightarrow r = 3 \text{ units} \cr} $$
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