Question

diameter of a sphere is decreased by 25% find its new volume​

Answer 1

Answer:

Let Volume of sphere be V and Radius R

V=4/3 pi R^3

if the diameter is decreased by 25% the new Radius = 3 R/4

New volume = 4/3 pi (R3/4)^3 = 4/3 pi R^3 (3/4)^3 = 3 R/4