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  1. #1
    Contributing Member
    Join Date
    Sep 2006
    Answers
    962

    Re: Cards problem...

    Hi Raj,

    Please read my question carefully.

    My Friend has 3 cards face down on a desk. One is a queen and other two are kings. He knows which card has queen and king. You can ask my friend one YES or NO question, but when you do, you need to point to one of the cards. If you point to an king, he will tell the truth, if you point to the queen, he will randomly say YES or NO. You have to find one of the kings..

    So if you point the queen then automatically you will find one of kings. Because both the side you have a king.

    So my question is to find any one of the king not both. I think now you will clear.

    ------------------
    suresh


  2. #2
    Contributing Member
    Join Date
    Aug 2007
    Answers
    59

    Re: Cards problem...

    [i]Point to the middle card and say, "Is the card to the right an king?" If the answer is yes, then the card on the right is an king. If the answer is no, the card on the left is an king. [i]

    but

    assume the centre card is queen and u r pointing to it and asking
    " Is the card to the right an king?"

    as the card u pointing is queen he may say the truth or lie

    suppose he lies then

    Last edited by raj1402; 10-23-2007 at 01:46 AM.

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