SOLUTION: sam can do job in 4 days, Lisa - 6 days, Tom - 2 days. How long would the job take to complete if they worked together ?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: sam can do job in 4 days, Lisa - 6 days, Tom - 2 days. How long would the job take to complete if they worked together ?      Log On


   

Question 407100: sam can do job in 4 days, Lisa - 6 days, Tom - 2 days. How long would the job take to complete if they worked together ?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Let x represent time it takes together

Question states*** per day is the Equalizer

 1/4 + 1/6 + 1/2 = 1/x  |Multiplying thru by 12x so as all denominators = 1

  3x + 2x + 6x = 12

        11x = 12

          x = 12/11 = 1.09 hours together