Density is ...
You have a different marble rock with a volume of 20cm3 and a mass of 80g. What is its density?
Density
Paul found a gold cube with a volume of 40cm3 and a mass of 240g. What is its density
You have a rock with a volume of 15cm3 and a mass of 45 g. What is its density?
gr/cm3
Its density is 4.0 g/cm3.
mass divided by volume.
Its density is 6.0 g/cm3.
Its density is 3.0 g/cm3.