decorator has 92 one foot square tiles to be laid around edge of 12 x 15 ft room. A rectangular rug that is 3 feet

Question

longer than it is wide is to be placed in center area where there are not tiles.

Find the dimensions of the smallest rug that will cover the untiled part of the floor. All tiles are used and none of them are split

Answer 1

180 - 92 = 88

The rug must be 8 ft by 11 ft.