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No Peeking

  1. Dec 11, 2006 #1
    Interesting puzzle I came across today, not too tough, but rewarding in the end.

    There are three containers labeled "pencils," "erasers," and "pencils and erasers". Each of these labels is incorrect. You may select only one item from one box. (No feeling around/peeking permitted.) How can you label each box correctly?

    Sorry if it has been posted already.
  2. jcsd
  3. Dec 11, 2006 #2
    EDIT: sorry...was too quick to react
  4. Dec 11, 2006 #3
    u go into the box containinng both ..if u take out a pencil then u know that the box labeled erasers contains erasers and penicils and the box labeled pencils contains erasers.
  5. Dec 11, 2006 #4

    correct. :smile:
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