SOLUTION: A can do a piece of work in 4 1/2 days. After he has worked three days, B joined him and they finished the work in 1 7/8 days. How long can B do the work alone?
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-> SOLUTION: A can do a piece of work in 4 1/2 days. After he has worked three days, B joined him and they finished the work in 1 7/8 days. How long can B do the work alone?
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Question 910245: A can do a piece of work in 4 1/2 days. After he has worked three days, B joined him and they finished the work in 1 7/8 days. How long can B do the work alone? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! That does NOT make sense.
A can do the job alone in 4.5 days
He worked alone for 3 days
3/4.5=2/3
He could finish the job in 1.5 days alone but he is working for 1 7/8 (1.875) days with a partner.
So it takes longer with the partner!
