57. If the length of a rectangle is increased by 25% and the width is decreased by 10%, the area of the resulting rectangle is larger than the area of the original rectangle by what percent?

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

Assuming that the length and width are both 1, the length after the change is 1.25, and the width is 0.9, 1.25×0.9=1.125, choose B