Question

how many ball,each of radius 2cm can be made from a solid sphere of lead of radius 8cm

Answer 1

no. of balls =(4/3 × 22/7 × R^3)/(4/3 × 22/7 × r^3)
= ( 8 × 8 × 8 ) / ( 2 × 2 × 2 )
= 64 balls.

Answer 2

Answer:

Step-by-step explanation:

given

Radius of balls =2cm

Radius of solid sphere lead =8cm

Soltuion

no. of balls =(4/3*22/7*r^3)/(4/3*22/7*r^3)

                   = (8*8*8)/(2*2*2)

                    =512/8

                     =64 balls