SOLUTION: x does a job in 6 days. Y does the same job in 3 days. If they do the job together, how long will it take them to finish the job?

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Question 237471: x does a job in 6 days. Y does the same job in 3 days. If they do the job together, how long will it take them to finish the job?
Found 2 solutions by checkley77, caet:
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
6*3/(6+3)=18/9=2 hours to finish the job working together.

Answer by caet(3) About Me  (Show Source):
You can put this solution on YOUR website!
x=days to finish the job
1/6+1/3=1/x find the denominator of 3 & 6
1/6+2/6=1/x
3/6=1/x
3x=6
3x/3=6/3
x=2