Final answer:
The volume of a bar of gold bullion can be found by dividing its mass by its density. For a bar weighing 12.4 kg with a density of 19.32 g/cm³, the volume is 641.85 cm³.
Step-by-step explanation:
The volume of a bar of gold bullion can be found by dividing its mass by its density. The mass of the bar of gold bullion is given as 12.4 kg, which is equal to 12,400 g. The density of gold is given as 19.32 g/cm³. To find the volume, divide the mass by the density:
Volume = Mass / Density
Volume = 12,400 g / 19.32 g/cm³
Volume = 641.85 cm³