A pen has a mass of 150g and a volume of 10mL. What is the density of the pen?

density (d) = m (mass) / V (volume)

d = kg/m³ or g/cm³

1mL = 1cm³

m = 150g

V = 0mL = 10cm³

d = 150g / 10mc³

d = 15g/cm³

I hope it will be good. In my school it was something like this. So the pen should have a density 15 g/cm³.