Suppose that there are two cubes, having edges 2 cm and 4 cm, respectively. Find the volumes V₁ and V₂ of the cubes and compare them.

A cube A has side thrice as long as that of cube B. What is the ratio of the volume of cube A to that of cube B?

An ice-cream brick measures 20 cm by 10 cm by 7 cm. How many such bricks can be stored in deep fridge whose inner dimensions are 100 cm by 50 cm by 42 cm?

A tea-packet measures 10 cm×6 cm× 4 cm. How many such tea-packets can be placed in a cardboard box of dimensions 50 cm× 30cm× 0.2 m?

The weight of a metal block of size 5 cm by 4 cm by 3 cm is 1 kg. Find the weight of a block of the same metal of size 15 cm by 8 cm by 3 cm.