Question 302969
Volume of cylinder = pir^2h



=pi*2*2*12

48pi

Volume of sphere = 4/3 pi r^3

= 4/3 * pi*2^3

=32/3 *pi

3 Balls

so volume of three balls = 32/3 pi * 3

= 32pi


Volume ofcylinder - volume of 3 balls = vacant space

48pi-32pi

=16pi cubic inches

Ananth