Question

a solid metallic sphere of diameter 16cm is melted and recast into a number of smaller cones each of radius 4cm and height 8cm. find the number of cones formed

Answer 1

No. of cones formed=volume of solid sphere/volume of 1 smaller cone
volume of solid sphere=4/3*pie*(r)3
volume of smaller cone=1/3*pie*(r)3*h