Length of a rectangular plot is 40 mtr more than its breadth. If the cost of fencin g the plot at 26.50 per meter is Rs. 5300, what is the length of the plot in mtr? Choose the most appropriate option
A) 46 m
B) 60 m
C) 58 m
D) 70 m
E) 80 m
Let breadth = x metres.   Then, length = (x + 40) metres.   Perimeter = 5300/26.5= 
<gadget id="calculator">5300/26.5</gadget>
<output>200</output>
200 m.   2[(x + 40) + x]= 200   2x + 40 = 100   2x = 60   x = 30.   Hence, length = x + 40 = 70 m   70 m
<result>D</result>
Length of a rectangular plot is 40 mtr more than its breadth. If the cost of fencin g the plot at 26.50 per meter is Rs. 5300, what is the length of the plot in mtr?