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Thread: Riddle # 187 (Solved By dangerous tears)

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    grin Riddle # 187 (Solved By dangerous tears)

    In the basement there are 3 light switches in the off position. Each switch controls 1 of 3 light bulbs on the floor above. You may move any of the switches, but you may only go up stairs one time. How can you determine which switch controls each light?
    صرف آواز نہیں ، لفظ بھی مقفل ہیں مرے

    سوچ میں ہوں کہ اب تجھ کو پکاروں کیسے

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    Default Re: Riddle # 187

    Turn one switch on. Leave it on for one minute. Turn that switch off. Turn another switch on. Leave it on. Go upstairs.

    The light to the second switch will still be on. The light for the first switch will be off, but the BULB WILL STILL BE WARM (may not work with CFLs). By process of elimination, the 3rd switch controls the lamp that is neither on nor warm.
    2112kjd - Riddle # 187 (Solved By dangerous tears)

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    Default Re: Riddle # 187

    rite
    صرف آواز نہیں ، لفظ بھی مقفل ہیں مرے

    سوچ میں ہوں کہ اب تجھ کو پکاروں کیسے

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