Question 821491
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Hi,
It takes 20 men to build a building for 60 days. Assuming that all men work at this rate, 
how many {{{green(X)}}} men will be needed to build the same building in 15 days?
{{{N[1] * T[1] * W[1] =N[2]*T[2]*W[2]}}}
  {{{60*20days*1 = X*15days*1}}}
      1200 = 15X
        80men = X