SOLUTION: If 15 workers can complete a job in 20 days, how long should it take 25 workers to complete the same job?

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Question 522592: If 15 workers can complete a job in 20 days, how long should it take 25 workers to complete the same job?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
If 15 workers can complete a job in 20 days, how long should it take 25 workers to complete the same job?
:
Let's use man-days to do this problem
:
15*20 = 300 man-days required to do this job
:
Let d = no. of days using 25 workers
:
25d = 300
d = 300%2F25
d = 12 days to complete the job with 25 men