SOLUTION: if 9 employees require 15 days to complete a task, how long would it take to do the same work if there were 3 additional employees?
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Question 679129: if 9 employees require 15 days to complete a task, how long would it take to do the same work if there were 3 additional employees?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
If 9 take 15 days to do one whole job, then 9 can do 
of the job in one day. Then 1 can do 
of the job in one day. Then 12 can do 
of the job in 1 day. Therefore 12 can do the job in 
days.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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