Question

49. (3) : Volume of sphere = Surface area of sphere ( Rightarrow quad frac{4}{3} pi r^{3}=4 pi r^{2} )
( Rightarrow quad r=3 ) units

# 49. If the volume and the surface area of a sphere are numerically equal, then its radius is (1) 1 unit (2) 2 units (3) 3 units (4) 4 units

Solution