Question

A solid sphere of radius 3cm is melted and then recast into small spherical balls each of diameter 0.6cm. Find the number of balls

Answer 1

Answer:1000 balls

Answer is given in the picture below

Answer 2

total no. of balls =volume of big sphere / volume of small sphere

volume of big sphere=2/3 π R³

2/3. π . 27

volume of small sphere =2/3.π.r³

2/3.π.216/1000

no. of balls=2/3.π.27  by  2/3.π.216/1000

answer=125