Question

A substance has a density of 5g|cm. A boy has a cube of this material which is 20m, 4cm, 2cm. What will be the amount of matter in the substance.

Answer 1

Answer:We are given density (d) = 5g/cm^(3)

Now volume of cuboid is= 20×4×2 = 160 cm^3

So , mass = d×vol = 5×160 = 800 g