A sold cylinder of diameter 18 cm and height 30 cm is melted and recast into toys with the shape of a right circular

A sold cylinder of diameter 18 cm and height 30 cm is melted and recast into toys with the shape of a right circular cone mounted on a hemisphere of radius 4.5 cm. If the height of the toy is 18cm, find the number of toys so formed?

(a)          12

(b)          14

(c)           15

(d)          16

Sol: