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Math Help - Help

  1. #1
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    Feb 2011
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    Help

    Hey, I'm entering a comp on the radio, and can't remember any old probability stuff. What I have to do is 'guess' a 3 digit number. I already know that 1 is the middle digit and it has an 8 somewhere in it, and I can cross some options off (other people tried and failed to guess it)

    Could you please help me come up with the most likely option/s?

    The possible numbers are:

    018
    118
    218
    418
    718
    818
    918
    810
    811
    812
    813
    814
    819
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  2. #2
    MHF Contributor Unknown008's Avatar
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    May 2010
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    If those are your only possibilities, then you have a 1 in 13 chances to get the numbers...

    But what is the system of this game exactly?
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  3. #3
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    Feb 2011
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    Yea, I got that far haha.

    Every hour someone can call up and say a 3 digit number that they think it is, so I've been checking off wrong numbers, but it's only a certain amount of time before someone gets it...

    The winner gets $10,000! I know they broadcast on the frequency 91.8 in a different region, so that'll be my first guess, but I was just wondering if there was a mathematical way of working out the most probable number

    Rob The Bank - Win - The Edge
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  4. #4
    MHF Contributor Unknown008's Avatar
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    You'll have to take the risk...

    Either you make THE guess, or you make one whic will make the next guess easier...

    Do you get something for guessing 1 number of the 3 digits?

    There was one similar game here in my country some years ago, but with a smaller sum.
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