Question 878757
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Hi
{{{N[1] * T[1] * green(W[2]) =N[2]*T[2]*green(W[1])}}} 
{{{12*6days*(2/3) = N[2]*9days*(1/3)}}}
      {{{144/9 = N[2]}}} = 16 men  (4 more men needed to finish the rest)