A rectangular floor that measures 6 meters by 8 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?  Choices:
A) $200  B) $240  C) $480  D) $960  E) $144
The width of the rectangular floor(6 m) is a multiple of one side of the square(2 m), and the length of the floor(8 m) is also a multiple of the side of the square. So the number of carpets to cover the floor is (6/2)*(8/2)= 
<gadget id="calculator">(6/2)*(8/2)</gadget>
<output>12</output>
12.   The total cost is 12*12= 
<gadget id="calculator">12*12</gadget>
<output>144</output>
$144   The answer is, therefore, $144.
<result>E</result>
A rectangular floor that measures 6 meters by 8 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?