Question 429935
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Hi
Let x represent time it would take to do the job if they all worked together
Question states***Per hour the Equalizer
 1/6 + 1/2 + 1/3 = 1/x    
Solving for x 
  x + 3x + 2x = 6    | multiplying thru by 6x so as all denominators= 1 
      6x = 6
       x = 1hr, time it would take to do the job if they all worked together

CHECKING our Answer***
   1/6 + 3/6 + 2/6 = 1