After the longer sides of a rectangle are decreased by 25%, the resulting shape is a square of area 576. What is the area of the original rectangle?
N - 0.25N = sqrt(576) = 24 = Length of
each side of the square.
0.75N = 24
N = 32 = Length of long sides of rectangle.
A = L * W = 32 * 24 = 768 = Area of
rectangle.