Question 389749
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Hi,         
Let x represent the time it will take them to make a quilt working together
Question State.  Per day being the equalizer
 1/3 + 1/4 = 1/x  multiplying each term by 12x so as all denomoinators= 1
 4x + 3x  = 12
     7x = 12
      x = 12/7 OR 1 5/7, the days it takes to make 'one' together
Making 35 Quilts working together... would take 35*12/7 = 60 days