SOLUTION: AZra can do a job in 4 hoursthat halycycon can do in 3 hours and silfer can do in 2 hours. If the three can work together, how many hours would they finish the job?

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Question 1027995: AZra can do a job in 4 hoursthat halycycon can do in 3 hours and silfer can do in 2 hours. If the three can work together, how many hours would they finish the job?
Answer by ikleyn(52803)   (Show Source): You can put this solution on YOUR website!
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AZra can do a job in 4 hoursthat halycycon can do in 3 hours and silfer can do in 2 hours. If the three can work together, how many hours would they finish the job?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 

Azra makes  of the job per hour.

Halycycon makes  of the job per hour.

Silfer makes  of the job per hour.

Working together they make  =  =  =  of the job per hour.

Hence, the three can make the job in  of an hour working together.

See the lesson Using fractions to solve word problems on joint work in this site for the variety of solved joint-work problems.
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