Find the number of lead balls of diameter 2 cm each, that can be made from a sphere of diameter 16 cm.?

Radius of the sphere = 16/2 = 8 cm
Volume of the sphere = (4/3) x π x 8 x 8 x 8 cm³
Radius of each lead ball = 2/2 = 1 cm
Volume of each lead ball = Volume of sphere / Volume of lead ball
= (4/3) π x 1 x 1 x 1 = 4π/3 cm³
∴ Number of lead balls = [(4/3) x π x 8 x 8 x 8 x 3] / [4 π]
= 8 x 8 x 8 = 512