SOLUTION: Each of the apprentices can complete 3/5 as many units of work an hour as an experienced worker.At this rate how many hours will it take the two apprentices working together to com

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Question 956899: Each of the apprentices can complete 3/5 as many units of work an hour as an experienced worker.At this rate how many hours will it take the two apprentices working together to complete 480units of work if the experienced worker can complete 80units an hour?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The experienced worker's rate is
+80%2F1+ units/hr
The apprentice's rate is
+%28%283%2F5%29%2A80+%29%2F1+=+48%2F1+ units/hr
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Working together, 2 apprentices have a rate of:
+%28+2%2A48+%29+%2F+1+=+96+%2F1+ units/hr
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[ units ] / [ units/hr ] = hrs
+480+%2F+96+=+5+
It will take 2 apprentices 5 hrs to finish
480 units of work