SOLUTION: If Sam can do a job in 4 days, Lisa can do the same job in 6 days, and Tom can do the job in 2 days, how will it take them do to the job together?
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Question 144404: If Sam can do a job in 4 days, Lisa can do the same job in 6 days, and Tom can do the job in 2 days, how will it take them do to the job together? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! If Sam can do a job in 4 days, Lisa can do the same job in 6 days, and Tom can do the job in 2 days, how will it take them do to the job together?
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Sam rate 1/4 job/day
Lisa rate 1/6 job/day
Tom rate 1/2 job/day
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EQUATION:
Let "x" be number of days they work together:
x(1/4 + 1/6 + 1/2) = 1 job
Multiply thru by 12 to get:
x(3 + 2 + 6) = 12
11x = 12
x = 12/11 days
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Cheers,
Stan H.
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