The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot at the rate of 26.50 per metre is 5,300, what is the length of the plot (in metres)? Options
A) 40 B) 120 C) 50 D) Data inadequate E) None of these
Perimeter of the rectangular plot = [(b + 20) + b] × 2   = 5300/26.5= 
<gadget id="calculator">5300/26.5</gadget>
<output>200</output>
200=200   ∴ (2b + 20)2 = 200   ⇒ b = 40   ⇒ l = 40 + 20= 
<gadget id="calculator">40 + 20</gadget>
<output>60</output>
60 m   Answer None of these
<result>E</result>
The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot at the rate of 26.50 per metre is 5,300, what is the length of the plot (in metres)?