### Video Transcript

The density of aluminium is 8,000
kilograms per cubic meter. Find the volume of a 100-kilogram
block of aluminium.

We know that the density of any
object is equal to its mass divided by its volume. The link between density, mass, and
volume can also be demonstrated in the triangle shown. In order to calculate the volume of
an object, we divide its mass by its density. If the mass is measured in
kilograms and the density in kilograms per cubic meter, then the units for volume
will be cubic meters.

In this question, the mass of the
block of aluminium is 100 kilograms and the density is 8,000 kilograms per meter
cubed. We can divide the numerator and
denominator by 100. This means that the volume of our
100-kilogram block of aluminium is one eightieth of a cubic meter.