the diameter of a basketball is approximately 9.5 inches and the diameter of a tennis ball is 2.5 inches. The volume of the basketball is about how many times greater than the volume of a tennis ball?
All we need to do is to compare the cubes of their radiuses.....so we have
[ 9.5 / 2]^3 / [ 2.5 / 2]^3 = [9.5]^3 / [2.5]^3 = about 54.872 times as great
