SOLUTION: ann, bella and cindy can do a piece of work in 20,30 and 60 days respectively. ann can do work in 15 days and in 20 days. if they work on it together for 4 days, then what is the f

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: ann, bella and cindy can do a piece of work in 20,30 and 60 days respectively. ann can do work in 15 days and in 20 days. if they work on it together for 4 days, then what is the f      Log On


   



Question 1174993: ann, bella and cindy can do a piece of work in 20,30 and 60 days respectively. ann can do work in 15 days and in 20 days. if they work on it together for 4 days, then what is the fraction of work left?
Answer by ikleyn(52805) About Me  (Show Source):
You can put this solution on YOUR website!
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