If the length of a rectangle is increased by 1/3rd and the width is decreased by 1/3rd, then the area of the rectangle is decreased by the fraction

The length of a given rectangle is increased by 20% and the breadth is decreased by 20%, then the area

If the length of a rectangle is increased by 200/3 %, then by what percent should the width of the rectangle be decreased in order to maintain the same area ?

If each of the dimensions of a rectangle is increased by 100%, then the area is increased by

The length of a rectangle is 1 cm more than its width and its perimeter is 14 cm, then the area of the rectangle is

The length and breadth of a square are increased by 30% and 20% respectively. The area of rectangle so formed exceeds the area of the square by :