Question

How many lead balls , each of radius 1cm , can be made from a sphere of radius 8cm ?

Answer 1

Let, n ball of each radius 1 cm could be made from the 'solid sphere'. Hence 512 balls of radius 1 cm can be made from a “solid sphere of radius 8 cm”.

Answer 2

Solution:- volume of sphere= (calculated)
=2144.66
volume of ball=(calculated)
=4.19
no. of balls to be made=2144.66/4.19
=511.85203
=512<=[ans]