Question

the length of a rectangular plot is twice its breadth if the perimeter of the plot is 240m find its area

Answer 1

length = x

breath = 2x

perimeter of rectangle = 2{L+B}

                           240m = 2{x+2x}

                   240/2 = 3x

                      120 = 3x

                       x = 120/3

                        x = 40

length = 40m

breath = 40×2=80m