Question

The properties of a cube are listed below: Density = 40 g/cm3 Length of side = 2 cm What is the mass of the cube? a 80 g b 160 g c 180 g d 320 g

Answer 1

Density = 40 g/cm³

Length of cube = 2 cm

volume of cube = (length)³

= (2)³

= 8 cm³

density = mass/volume

40 = mass / 8

mass = 40×8 = 320 g

$\boxed{mass = 320 \:g}$

so, option (d) 320 g is correct.

hope it helps you :)