Shan wants to paint one rectangular wall 4 m by 3 m and one rectangular wall
6 m by 4.5 m.
She knows that she needs 2 litres of paint to paint a rectangular wall 8 m by 3 m.
Shan has 4 cans of paint.
She assumes that each can contains 0.95 litres of paint.
If Shan's assumption is correct, does she have enough paint to paint the walls?
You must show all your working.