calculate the effect changes in dimension of a rectangle will have on its area , if length is increased by 35 % and its breadth is decreased by 21 % ?
"let l and b be 100 each 100 * 100 = 10000 l increase by 35 % = 135 b decrease by 21 % = 79 135 * 79 = 10665 6.65 % increase answer : c"
multiply(divide(subtract(multiply(add(const_100, 35), subtract(const_100, 21)), multiply(const_100, const_100)), multiply(const_100, const_100)), const_100)