The length of rectangle is thrice its breadth and its perimeter is 80 m, find the area of the rectangle?	Select the correct option.
A) 432  B) 300  C) 252  D) 992  E) 212
2(3x + x) = 80   l = 30 b = 10   lb = 30 * 10= 
<gadget id="calculator">30 * 10</gadget>
<output>300</output>
300   Answer:300
<result>B</result>
The length of rectangle is thrice its breadth and its perimeter is 80 m, find the area of the rectangle?