SOLUTION: Six tractors can plow a field in 8 hours if they all work together. How many hours will it take 4 tractors to do the job?

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Question 459861: Six tractors can plow a field in 8 hours if they all work together. How many hours will it take 4 tractors to do the job?
Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
This type problem assume that all the tractors do an equal amount of work which is contrary to other work problems.
There are 48 tractor hours
So 4 tractors will take 12 hours to do 48 tractor hours of work.

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