A painter uses 1.2 liters of the paint to cover 1m2 of the wall. How many square meters he can cover with (1) 12 liters; (2) 6.6 liters; (3) 4.8 liters of paint?

To solve this problem, all we need is to do ratio and proportion. We know that for every 1.2 Liters, we can cover 1 m^2 of wall. Hence the ratio is:

ratio factor = 1 m^2 / 1.2 Liters

(1) for 12 Liters of paint, the area is:

area = 12 Liters * (1 m^2 / 1.2 Liters) = 10 m^2

(2) for 6.6 Liters of paint, the area is:

area = 6.6 Liters * (1 m^2 / 1.2 Liters) = 5.5 m^2

(3) for 4.8 Liters of paint, the area is:

area = 4.8 Liters * (1 m^2 / 1.2 Liters) = 4 m^2