Question

A cubical tank can hold 27,000 litres of water. Find the dimension of its side.

Answer 1

Let a be the side of the cubical tank. Volume of the tank is 27,000 litres. So,
$V=a^3=\frac{27,000}{1,000}{m}^3=27m^3$
$\therefore a{=}^3\sqrt{27}=3m$