SOLUTION: in a factory, 60 workers take 9 hours to make 450 bags. how long will 40 workers take to make 750 bags if all of them work at the same rate?

Question 795532: in a factory, 60 workers take 9 hours to make 450 bags. how long will 40 workers take to make 750 bags if all of them work at the same rate?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
in a factory, 60 workers take 9 hours to make 450 bags.
find how many man-hrs to make 1 bag
= 1.2 man-hrs per bag
:
how long will 40 workers take to make 750 bags if all of them work at the same rate?
Let t = time required by 40 to make 750 bags
40t = 750(1.2)
40t = 900
t = 900/40
t = 22.5 hrs
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