Question

If 3 litres of paint cost £9.90, how much will 5 litres of paint cost?

Answer 1

`16.50` pounds

Explanation:

If three litres of paint cost `9.90` pounds then one litre of paint costs `3.30` pounds because `9.90/3=3.30`.

So if we take the price of three litres and add two more litres then we'll get the price of `5` litres.

`9.90+2(3.30)->9.90+6.60=16.50` pounds