SOLUTION: it would take 3 workers 105 hours to build an addition to a house how long would it take 15 workers to do the job
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Question 1033036: it would take 3 workers 105 hours to build an addition to a house how long would it take 15 workers to do the job Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! Consider the concept of man-hours.
The job takes 3*105 = 315 man-hours.
If we divide that by 15, we get
315/15 = 21 hours
