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Thread: A puzzle

  1. #1
    Regular Member Ste's Avatar
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    Default A puzzle

    There is a room with 3 light bulbs, which all work.

    Outside the room there are 3 switches. Each switch operates one bulb.

    You can only go in the room once, and cannot see into the room from where the switches are.

    You are on your own and need to identify which switch operates which bulb.



    How do you do it??

  2. #2
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    operate switch 1 for 40 seconds, then SW 2 for 10 seconds and dont switch SW3

    Then go feel the bulbs. the hottest one is SW 1, the coolest one is SW 2 and the cold one is SW 3

    is that it?

  3. #3
    Regular Member Ste's Avatar
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    Default

    Easier than that, but like your style, almost correct

  4. #4
    Regular Member lofty's Avatar
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    Default

    Leave one bulb on, turn one off after 30 seconds of being on, and leave one off completely.

  5. #5
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    damn it cant think of anything else :S

  6. #6
    Regular Member Caterman's Avatar
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    Default

    Switch 2 lamps on but before you go into the room switch 1 off. When in the room there will be 1 lamp on, 1 lamp hot and 1 cold


    EDIT: too slow
    Quote Originally Posted by lofty69 View Post
    Leave one bulb on, turn one off after 30 seconds of being on, and leave one off completely.

  7. #7
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    ask someone else to go into the room and then try each switch and ask which bulb is on.

  8. #8
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    your on your own? hows that gonna work Rob?

  9. #9
    [Ex]Admin Duncan's Avatar
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    Default

    Quote Originally Posted by Caterman View Post
    Switch 2 lamps on but before you go into the room switch 1 off. When in the room there will be 1 lamp on, 1 lamp hot and 1 cold

  10. #10
    Regular Member Ste's Avatar
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    Default

    yes,

    Easy wasn't it.

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