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8 workers to build 6 cars

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8 workers to build 6 cars

by sanju09 » Tue Sep 14, 2010 4:02 am
If 6 workers can build 4 cars in 2 days, then how many days would it take 8 workers to build 6 cars?
(A) 5/3
(B) 9/4
(C) 8/3
(D) 11/4
(E) 10/3



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by Rahul@gurome » Tue Sep 14, 2010 4:12 am
6 workers can build 4 cars in 2 days.
1 worker can build 4 cars in 2*6 = 12 days
1 worker can build 1 car in 12/4 = 3 days
1 worker can build 6 cars in 3*6 = 18 days
8 workers can build 6 cars in 18/8 = 9/4 days

The correct answer is [spoiler](B)[/spoiler].
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