SOLUTION: A Painting job can be completed in 12 hours by 3 professional painters. The same job can be completed in 6 hours by 6 professional painters. All professional painters paint at the

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Question 704506: A Painting job can be completed in 12 hours by 3 professional painters. The same job can be completed in 6 hours by 6 professional painters. All professional painters paint at the same rate.
What is the total amount of time it would take 9 professional painters to complete the same painting job?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
3 times as many painters can do the same job
in 1/3 the time
+%281%2F3%29%2A12+=+4+
9 painters can finish the job in 4 hrs