Question

The number of solid spheres, each of diameter 6cm that can be made by melting a solid metal cylinder of height 45cm & diameter 4cm is

Answer 1

Answer:

Step-by-step explanation:

d=6 cm r=3 cm

H=45 cm r=2cm

Let no. of sphere be 'n'

Vol. of cylinder = n x Vol of 1 sphere

pi R2 H = n x 4/3 pi r3

pi x 2 x 2 x 45= n x 4/3 pi r3

180 = n x 4/3 x 27

180 / 36= n

Therefore, n = 5 spheres

Hope it helps..