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.2210. The perimeter of the plot is?  Choose the most appropriate option:  A) 126  B) 156  C) 340  D) 321  E) 260
Sol. Let width = x, Length = (10+x)   Perimeter = 2(x+(10+x))   = 2(2x=10)   &amp; 2(2x+10)*6.5 = 2210   X = 80   Required perimeter = 2(80+90) = 340   340
<result>C</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.2210. The perimeter of the plot is?