If 8 workers can build 8 cars in 8 days, then how many days would it take 6 workers to build 6 cars?	Choices:
A) 2  B) 4  C) 6  D) 8  E) 12
8 workers can build 1 car per day on average.   1 worker can build 1/8 of a car per day.   6 workers can build 6/8 car per day.   The time required to build 6 cars is 6 / (6/8)= 
<gadget id="calculator">6 / (6/8)</gadget>
<output>8</output>
8 days   The answer is 8.
<result>D</result>
If 8 workers can build 8 cars in 8 days, then how many days would it take 6 workers to build 6 cars?