Two solid cubes have exactly the same volume. Cube P is made of a material of density 2.5gcm−3 and cube Q is made of a material of density 5.0gcm−3. Which statement is correct?
(a) Both cubes have the same mass
(b) The masses cannot be compared with the information given
(c) The mass of cube P is half the mass of cube Q
(d) The mass of cube P is twice the mass of cube Q