SOLUTION: A project requires three engineers working together for 15 days. After working for 5 days, extra two engineers join into the team. How many days are anticipated to finish the rest

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Question 1069992: A project requires three engineers working together for 15 days. After working for 5 days, extra two engineers join into the team. How many days are anticipated to finish the rest of the project?
Found 2 solutions by Fombitz, ikleyn:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
The complete job requires .
After 5 days, the engineers have only completed .
So the 5 engineers will need to complete.
That will require an additional
Answer by ikleyn(52794)   (Show Source): You can put this solution on YOUR website!
.
A project requires three engineers working together for 15 days. After working for 5 days, extra two engineers join into the team.
How many days are anticipated to finish the rest of the project?
~~~~~~~~~~~~~~~~~~~~~~~ 

After working for 5 days, the three engineers completed  of the job, and  remains to complete.


Now we have 5 engineers, the rate of each is  = .


They will complete the remaining  of the job in  :  =  =  =  = 6 days.


Answer.  6 days.


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