The length of a rectangular plot is 10mtr more than its width. The cost of fencing the plot along its perimeter at the rate of Rs. 6.5mtr is Rs.910. The perimeter of the plot is?  Choose the correct choice from the following answers.
A) 126
B) 156
C) 190
D) 140
E) 260
Sol. Let width = x, Length = (10+x)   Perimeter = 2(x+(10+x))   = 2(2x=10)   &amp; 2(2x+10)*6.5 = 910   X = 30   Required perimeter = 2(30+40) = 140   140
<result>D</result>
The length of a rectangular plot is 10mtr more than its width. The cost of fencing the plot along its perimeter at the rate of Rs. 6.5mtr is Rs.910. The perimeter of the plot is?