Question

How many bullets can be made out of a cube of lead whose edge measures $22cm$, each bullet being $2cm$ in diameter?

Answer 1

Because the bullet has a diameter, it is in the form of a sphere whose radius is $1cm$ ($2cm$ in diameter)
$\therefore$ number of spherical bullets
$=\frac{Volumeofthecube}{Volumeofthesphere}$
$=\frac{22\times 22\times 22}{\frac{4}{3}\times \frac{22}{7}\times 1\times 1\times 1}$
$=2541$