If the volume and surface area of a sphere are numerically the same, then its radius is · ABC26GN5005

Subject: General Aptitude · Chapter: Volume and Surface Area · Exam: C.P.O. 2006

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

(a)1 unit

(b)2 units

(c)3 units

(d)4 units

Answer

Answer (as printed): C

Explanation

$\frac{4}{3} \pi r^{3}=4 \pi r^{2} \Rightarrow r=3$.

Explanation as extracted from the printed page; notation may be imperfect.

Study loop for Volume and Surface Area