The length of a rectangular floor is more than its breadth by 200%. If Rs. 324 is required to paint the floor at the rate of Rs. 3 per sq m, then what would be the length of the floor? Select the correct option
A) 10	B) 13	C) 18	D) 19	E) 12
Let the length and the breadth of the floor be l m and b m respectively.   l = b + 200% of b = l + 2b = 3b   Area of the floor = 324/3= 
<gadget id="calculator">324/3</gadget>
<output>108</output>
108 sq m   l b= 108 i.e., l * l/3 = 108   l2 = 324 =&gt; l = 18.   Answer: Option 18
<result>C</result>
The length of a rectangular floor is more than its breadth by 200%. If Rs. 324 is required to paint the floor at the rate of Rs. 3 per sq m, then what would be the length of the floor?