If the sides of a rectangle are increased by 25%, what is the percentage increase in the area?
Select:
A) 54.25 %  B) 56.25 $  C) 53.25 %  D) 55.25 %  E) 58.25 %

Rationale: "if sides are a and b , after increase sides would be 1.25 a and 1.25 b . percentage increase in area = ( 1.25 a * 1.25 b - ab ) * 100 / ab = 56.25 % answer : b"
Answer: B