How many apples could fit in the volume of the earth?

If the Earth's radius is approximately 6780km.

Volume of sphere is V=4/3*π*r^3

Therefore,

V(earth)=4/3*π*(6780000)^3

V(earth)=1.31*10^21 cubic metres

Assuming the average radius of an Apple is 5cm

Therefore,

V(Apple)=4/3*π*(0.05)^3

V(Apple)=5.24*10^-4 cubic metres

Hence, the amount of Apple that could fit in the volume of Earth is

=V(earth)/V(Apple)

=(1.31*10^21)/(5.24*10^-4)

=2.5*10^24

=2.5 Septillion Apples

=2,500,000,000,000,000,000,000,000 Apples :)