Question

The radius of a solid sphere is 12 cm. How many spheres can be made from it of 6cm radius?

Answer 1

Volume of big sphere
= 4/3 × πr^3
= 4/3 ×π× 12×12×12
= 2304π

volume of small sphere
= 4/3 × π × 6×6×6
= 288π

No of small sphere that can be made
= 2304π/288π
= 8

Hence 8 sphere of radius 6 cm can be made

Answer 2

Radius of solid sphere = 12cm
Volume = 4/3π * 12*12*12 = 2304π

Radius of another sphere = 6cm
Volume = 4/3π*6*6*6 =288π

Total number of spheres that can be made =
2304π/288π
= 8