Question

A cuboid is 20 cm long and 12 cm wide how I must it be so as to hold 3 litre of water

Answer 1

length= 20cm
width=12cm
volume=3 litre=3000cm^3
height=3000\20×12
=12.5cm

Answer 2

According to the Question

Length= 20cm  

Width = 12cm

Volume = 3 litre

Change it in Centimeter :-

= 3000 cm^3

Height = $\bf\huge\frac{3000}{20} \times12$

= 12.5 cm