The perimeter of the rectangle is 48 cm. Find the area of the rectangle if its width is 3 times less than its length.

1) The width of the rectangle is x centimeters.

2) The length of the rectangle is x * 3 = 3x centimeters.

(x + 3x) * 2 = 48;

4x * 2 = 48;

8x = 48;

x = 48/8 = 6;

x = 6;

4) The width of the rectangle is x = 6 cm.

5) The length of the rectangle is x * 3 = 6 * 3 = 18 cm.

6) Find the area of the rectangle.

6 * 18 = 108 cm ^ 2.

Answer: The area of a rectangle is 108 square centimeters.