The length of a rectangular floor is more than its breadth by 300%. If Rs. 423 is required to paint the floor at the rate of Rs. 3 per sq m, then what would be the length of the floor?  Pick one:
A) 24
B) 25
C) 26.6m
D) 26
E) 27
Let the length and the breadth of the floor be l m and b m respectively.   l = b + 400% of b = l + 4b = 5b   Area of the floor = 423/3= 
<gadget id="calculator">423/3</gadget>
<output>141</output>
141 sq m   l b= 141 i.e., l * l/5 = 141   l2 = 705 =&gt; l = 26.6m.   ANSWER:26.6m
<result>C</result>
The length of a rectangular floor is more than its breadth by 300%. If Rs. 423 is required to paint the floor at the rate of Rs. 3 per sq m, then what would be the length of the floor?