Peter wants to hang his paintings on a wall that is 2 1/2 meters high and 5 1/2 meters wide. He hangs four paintings, each of which is 1 1/4 meters high and 2/3 meter wide. what area of the wall is NOT covered by paintings?

Answer 1

wall area: 2.5m * 5.5m = 13.75 m^2
paintings: 4*1.25*2/3 = 3.33 m^2
so, what's the difference?

Answer 2

10.42