SOLUTION: if Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 day how long will the job take if Sam,Lisa and Tom together to complete it.
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-> SOLUTION: if Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 day how long will the job take if Sam,Lisa and Tom together to complete it.
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Question 169640: if Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 day how long will the job take if Sam,Lisa and Tom together to complete it. Answer by Mathtut(3670) (Show Source):
You can put this solution on YOUR website! sam can do 1/4 job per day
lisa can do 1/6 job per day
tom can do 1/2 job per day
so together
:t/4+t/6+t/2=1(job)
multiply terms by 12
:
3t+2t+6t=12
:
11t=12
: days to do the job together
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