A solid spherical ball of iron of radius 4 cm is melted to form spheres of radius 2 cm each The numb...........

Quantitative Aptitude (CDS) Mensuration 3D

A solid spherical ball of iron of radius 4 cm is melted to form spheres of radius 2 cm each. The number of spheres, so formed is

Number of spheres=Volume of a solid sphere with radius 4 cm/Volume of a solid sphere with radius 2 cm
=4/3π(4)³/4/3π(2)³
=(2)⁶/(2)³= (2)³= 8

Submit Error