If we increase the length and width of a rectangle by one third, what is the area of the rectangle now?

If we increase the length and width of a rectangle by one third, what is the area of the rectangle now?

The length and width of the rectangle are increased by one third respectively, that is to say, the current length and width are respectively four thirds of the original length and width, so the area should be 4 / 3 * 4 / 3 = 16 / 9 (16 / 9)