SOLUTION: 6 persons worked 8 days to finish 3/5 of a building,. If 2 more persons join them , how may more days to complete the building?

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Question 857592: 6 persons worked 8 days to finish 3/5 of a building,. If 2 more persons join them , how may more days to complete the building?
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
6 persons______________8 days______(3/5)job
1 person______________6*8 days_____(3/5)job

One person works at a rate of .
Simplifying the one-person rate,

----Not changing this form yet, since maybe not need to.

How many more days, if TWO more people join to help?
The remaining building job to do is , and now the number of people to do this work is , eight people to do this work.

The work rate for these eight people together is now jobs per day.

Uniform rates equation for task completion or work rates goes as R*T=J for Rate, Time(in days here), Job(whatever is to be done to the building). Putting the numbers in place,
where t is the number of days for this amount of job at that work rate.
-
days more.

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