The cost of carpeting a room 18m long with a carpet 75cm wide at 45 paise per meter is Rs.81. The breadth of the room is: Choose the correct choice from the following:
A) 7m	B) 7.5m	C) 5.5m	D) 6.5m	E) 8.5m
Length of the carpet= Total cost/ rate/m= 8100/45= 
<gadget id="calculator">8100/45</gadget>
<output>180</output>
180m   Area of the carpet= 180*75/100= 
<gadget id="calculator">180*75/100</gadget>
<output>135</output>
135m2   7.5mreadth of the room= (Area/ length)= 135/18= 
<gadget id="calculator">135/18</gadget>
<output>15/2 = around 7.5</output>
7.5m   ANSWER:7.5m
<result>B</result>
The cost of carpeting a room 18m long with a carpet 75cm wide at 45 paise per meter is Rs.81. The breadth of the room is: