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Should be an easy but conceptual problem

  1. Feb 27, 2012 #1
    1. The problem statement, all variables and given/known data

    This is a question I once encountered with a window advertisement popup, but I think I can work out the answer but I don't know how to logically explain it to my kids.


    10 people can paint 60 houses in 120 days. How many houses can 5 people paint in 60 days

    2. Relevant equations

    No, that's all

    3. The attempt at a solution

    What a seem-to-be easy problem is not easy. (for me at least)
     
  2. jcsd
  3. Feb 27, 2012 #2
    Think about how you could represent this problem using straight lines
     
  4. Feb 27, 2012 #3

    Mark44

    Staff: Mentor

    So 1 person can paint 6 houses in 120 days.
     
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