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Thread: Math Help

  1. #1
    kitcarnut
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    Math Help

    Carlo sent me e mail but can anybody help me?
    Hi Ed

    I need your brain power. Some Drís at the hospital couldnít get this question.



    For some reason most people had trouble with this question.



    "An alligator has a head 6 inches long. The tail is equal to twice the size of the head plus one half of the size of the body. The body is the size of the head plus the tail"

    How long is the alligator?



    a. 27

    b. 54

    c. 63

    d. 72

    e. 84



    Answer =





    Last time I looked @ my Alligator was 6". ;D I don't know about this one.



  2. #2
    Senior Member
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    Re: Math Help

    OK KITCARNUT Now my brain is twisted into a pretzel And I DON"T have insurance. Heeeeeeeeeeeeelp!!!


    EEExotic
    Just smart enough to be very Dangerous

  3. #3
    Senior Member lovef501's Avatar
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    Re: Math Help

    i got 27????

  4. #4
    Senior Member superstang460's Avatar
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    Re: Math Help

    There are actually not enough known variables to complete this mathematical equation. If the head is 6" than H=6.
    If the tail is twice the head plus 1/2 body than T=12+1/2B
    If the body is the head plus the tail than B=6+12+1/2B

    The last unknow factor(B or body length) has its own unknown length in the factor wich cannot be predetirmined without more information. The equation would be L for overall length of aligator

    L=6+12+1/2B+6+12+1/2B
    or
    L=36+1B

    without knowing the overall length or the body length the solution is unobtainable and this is an OXYMoron.
    Kitcarnut, you knew that right ???

    Bob
    5 out of 4 people are not good at fractions

  5. #5
    kitcarnut
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    Re: Math Help

    Eh, there is no answer!
    Superstang 460 you are right.

  6. #6
    Senior Member Randolph's Avatar
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    Re: Math Help

    It is 72"

    Here is how to do it:

    Alligator = Head + Body + Tail

    Head = 6"

    Tail = 2(Head) + 1/2(Body)

    Body = Head + Tail

    Using subsitiution:

    Tail = 2(Head) + 1/2(Head + Tail)
    Tail = 2(6) + 1/2(6 + Tail)
    Tail = 12 + 3 + 1/2(Tail)
    1/2(Tail) = 15
    Tail = 30

    Body = Head + Tail
    Body = 6 + 30 = 36

    Alligator = Head + Body + Tail
    Alligator = 6 + 36 + 30
    Alligator = 72




  7. #7
    Senior Member superstang460's Avatar
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    Re: Math Help

    Very good Randolph!!
    I had never thought of substitution in order to find more unknown variables. Now I feel stupid being a math major and having a 3.92 GPA :'(. I should have given more thought before jumping to conclusions.

    Bob
    5 out of 4 people are not good at fractions

  8. #8
    kitcarnut
    Guest

    Re: Math Help

    congratulation,now you should have no problems building a replica.

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