It is given that,
A metallic block of dimension
The diameter of each bullet
As, we know that
Formula of volume of the sphere
As, we know that,
The volume of the rectangular block
Radius of the bullet
Assume the number of bullets made from the rectangular block be n.
Now from the question,
The volume of the rectangular block sum of the volumes of the n spherical bullets
Solving for n, we have
Hence, can be cast from the rectangular block of metal.