The mass of 4m³ of silver is 41960kg. The density of gold is 19300kg/m³.
Calculate the difference in mass between 5m³ of silver and 5m³ of gold.

Material A has a density of 4.5g/cm³.
Material B has a density of 14g/cm³.
5kg of Material A and 200g of Material B form Material C.
Work out the density of Material C.

A solid sphere has a diameter of 12cm.
The sphere is made from glass.
The density of the glass is 3.02g/cm
Find the mass of the glass sphere.