score = (x) -> 
  if x == "Yes"
    10
  else
    0
  
weights = (1/3 for i in [0...3])
working_hours_fundamentals = [commitment, fair_overtime_commitment, commitment_in_business_relationship_employees]

weights.reduce((weighted_sum, weight, index) -> 
              weighted_sum + weight*score(working_hours_fundamentals[index])
             , 0)