Question

A solid metallic sphere of radius 30cm is melted to make a soild cyclinder of radius 10cm and height 7.5cm how many such cyclinders can be made

Answer 1

volume of sphere = 4/3 *30*30*30
=36000
volume of cylinder =3.14*10*10*7.5
=2355
no. of cylinders =36000/2355
=15.29