The length of a rectangular plot is 20 metres more than its breadth.
The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot @ Rs. 26.50 per metre is Rs. 4240, what is the length of the plot in metres?
Answer/Solution
50
Steps/Work
Let length of plot = L meters, then breadth = L - 20 meters
and perimeter = 2[L + L - 20] = [4L - 40] meters
[4L - 40] * 26.50 = 4240
[4L - 40] = 4240 / 26.50 = 160
4L = 200
L = 200/4= 50 meters. Answer: C
and perimeter = 2[L + L - 20] = [4L - 40] meters
[4L - 40] * 26.50 = 4240
[4L - 40] = 4240 / 26.50 = 160
4L = 200
L = 200/4= 50 meters. Answer: C