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?
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Question 198451: 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?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
sam can do 1/4 the job in 1 day, lisa 1/6 and tom 1/2 in 1 day
1/4 + 1/6 + 1/2
=3/12 + 2/12 + 6/12
=11/12 in 1 day
12/11 of a day to do the job
or 1 1/11 days working together.
.
Ed
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