Calculate the effect changes in dimension of a rectangle will have on its area, if length is increased by 40% and its breadth is decreased by 25%? Answers.
A) 5 % increase
B) 7 % increase
C) 6 % increase
D) 4 % increase
E) 3 % increase

Rationale: "let l and b be 100 each 100 * 100 = 10000 l increase by 40 % = 140 b decrease by 25 % = 75 140 * 75 = 10500 5 % increase answer : a"
Answer: A