if the length of a rectangle is increased by 20 % and the breadth is reduced by 20 % , what will be the effect on its area ?
percentage change = x - y - xy ⁄ 100 = 20 – 20 – 20 × 20 / 100 = − 4 % = 4 % decrease answer d
multiply(subtract(const_1, multiply(add(const_1, divide(20, const_100)), subtract(const_1, divide(20, const_100)))), const_100)