SOLUTION: 30 men can make a 120 articles in 8 days working 10hours/day.if 10 men leave the work after 4 days then how many hours per day should the rest of the men work to complete the job a

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Question 984653: 30 men can make a 120 articles in 8 days working 10hours/day.if 10 men leave the work after 4 days then how many hours per day should the rest of the men work to complete the job as per the shedule?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
Focus on hours, and attempt to find the one-man rate.

30r%2A%288%2A10%29=120, the 8*10 being the number of hours.
r=120%2F%2830%2A80%29=12%2F240=6%2F120=1%2F20, the one man rate, articles per hour.

Next, you will have the sum of two terms.

30 men for 4 days at 10 hours per day, and then 20 men for t unknown rate in hours per days . Still at 8 hours per day. Sum must still be 120 articles.
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30%281%2F20%29%2A%284%2A10%29%2B20%281%2F20%29%2A%284%2At%29=120

Find t, the hours per day that those 20 remaining men must work.

Answer by MathTherapy(10555) About Me  (Show Source):
You can put this solution on YOUR website!

30 men can make a 120 articles in 8 days working 10hours/day.if 10 men leave the work after 4 days then how many hours per day should the rest of the men work to complete the job as per the shedule?
The remaining 20 men (30 - 10) have to work highlight_green%2815%29 hours each day for the remaining 4 (8 - 4) days to complete the remaining 60 (120 - 60) articles