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Countdown numbers game

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  • 31-03-2007 9:40pm
    #1
    dentaku
    Registered Users Posts: 58 ✭✭


    I'm AMAZING at maths :cool: and I can't work it out. My friend's EVEN BETTER :cool: :cool: and he can't do it either, so it's got to be impossible, right?

    Numbers: 100 75 50 10 8 2

    Target: 461

    Ans:


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    #2
    Ruu_Old
    Closed Accounts Posts: 36,634 ✭✭✭✭Ruu_Old


    There is a long running Countdown game on this thread.


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    #3
    Thrill
    Registered Users Posts: 5,485 ✭✭✭Thrill


    dentaku wrote:
    I'm AMAZING at maths :cool: and I can't work it out. My friend's EVEN BETTER :cool: :cool: and he can't do it either, so it's got to be impossible, right?

    Numbers: 100 75 50 10 8 2

    Target: 461

    Ans:

    Cant be done. Closest is 460, but you knew that didnt you. Come on...admit it.:)


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    #4
    r3nu4l
    Registered Users Posts: 17,399 ✭✭✭✭r3nu4l


    thrill wrote:
    Cant be done. Closest is 460, but you knew that didnt you. Come on...admit it.:)

    QFT.

    You don't even need to try it, one look at the numbers tells you that it's not possible to produce a '1' at the end of any possible answer.

    For those wondering how to get 460:

    8-2 =6
    6*75=450
    450+10=460

    It's also possible to get 462 ;)


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    #5
    Mellor
    Registered Users Posts: 39,138 ✭✭✭✭Mellor


    r3nu4l wrote:

    You don't even need to try it, one look at the numbers tells you that it's not possible to produce a '1' at the end of any possible answer.

    For those wondering how to get 460:

    8-2 =6
    6*75=450
    450+10=460

    Not true, it is possible to get a 1

    (100/50)/2=1

    Obviously the two is required to get to 460.
    But a 1 is possible ;)


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    #6
    Healio
    Registered Users Posts: 2,825 ✭✭✭Healio


    would you take 461.25???


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    #7
    r3nu4l
    Registered Users Posts: 17,399 ✭✭✭✭r3nu4l


    Mellor wrote:
    Not true, it is possible to get a 1

    (100/50)/2=1

    Obviously the two is required to get to 460.
    But a 1 is possible ;)
    When I said any possible answer, I meant any possible answer...to this target, therefore it's impossible. Anyone can get a 1 from it, just not for that target.


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    #8
    Jimoslimos
    Registered Users Posts: 4,930 ✭✭✭Jimoslimos


    Maybe this has been asked before on Countdown (but I can't remember), as well as addition/subtraction/multiplication & division is it possible to use the numbers as powers of each other? Such as 2^8 = 256


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    #9
    r3nu4l
    Registered Users Posts: 17,399 ✭✭✭✭r3nu4l


    Jimoslimos wrote:
    Maybe this has been asked before on Countdown (but I can't remember), as well as addition/subtraction/multiplication & division is it possible to use the numbers as powers of each other? Such as 2^8 = 256

    Not sure about the TV show but on the Countdown thread on boards, powers are not allowed. I have never seen them used on the TV show so would doubt it's allowed as it would be a fairly common practice by now and does make the game far easier.


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    #10
    dentaku
    Registered Users Posts: 58 ✭✭dentaku


    thrill wrote:
    Cant be done. Closest is 460, but you knew that didnt you. Come on...admit it.:)

    :D


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    #11
    Tar.Aldarion
    Moderators, Science, Health & Environment Moderators, Social & Fun Moderators, Society & Culture Moderators Posts: 60,090 Mod ✭✭✭✭Tar.Aldarion


    Not allowed them on the show either.


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