The Area of a Rectangle Is 15 Times the Area

Multiple Choice

The area of a rectangle is 15 times the area of a square. If the rectangle is 75 inches long and the width of the rectangle is the same as the length of a side of the square, find the length of a side of the square.

A) 5 inches
B) 15 inches
C) 10 inches
D) 3 inches
E) 7 inches