SOLUTION: A can do 1/3 of a work in 5 days and B can do 2/5 of the work in 10 days. How many days both A and B together can do the work? ...

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A can do 1/3 of a work in 5 days and B can do 2/5 of the work in 10 days. How many days both A and B together can do the work? ...       Log On


   



Question 891473: A can do 1/3 of a work in 5 days and B can do 2/5 of the work in 10 days. How many days both A and B together can do the work?

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Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/3 of a job in 5 days works out to the whole job in 15 days
2/5 of a job in 10 days works out to the whole job in 25 days
1/15+1/25=1/x
5/75+3/75=1/x
8/75=1/x
x=75/8=9.378 days = 9 days and 3 hours assuming an 8 hour day