If a pair of opposite sides of a square is increased by 5cm each, then the ratio of the sides of the new figure is 3 : 2. What is the original area of the square? Pick one:
A) 125 cm2 B) 225 cm2 C) 81 cm2 D) 100 cm2 E) None of these
Let the original side of the square = x cm   x+5/x=3/2 or 2x + 10 = 3x   \ x = 10 cm   \ original area = (10)2 = 100 cm2   Answer 100 cm2
<result>D</result>
If a pair of opposite sides of a square is increased by 5cm each, then the ratio of the sides of the new figure is 3 : 2. What is the original area of the square?