SOLUTION: If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it? how to solve, e

Algebra ->  Rate-of-work-word-problems -> SOLUTION: If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it? how to solve, e      Log On


   

Question 259777: If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it? how to solve, explain please
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it? how to solve, explain please
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In one day,
Sam does 1/4
Lisa does 1/6
Tom does 1/2
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1/4 + 1/6 + 1/2 = 11/12 per day together
--> 12/11 days to do the job.