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My first question!

  1. #1
    Registered User
    Join Date
    12-22-2005
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    8

    My first question!

    Hi.... I posted this earlier before it vanished of the first page! Is it always this busy here??

    Anyone mind if I re-post it here?........................................................


    .............. Hi, can anyone help me with the following question- it would be much appreciated!

    Use the 'Goal seek' option on the 'Data' menu to find the value of cell A1 in the following formula - =sum(A1+A2+A3+A4+33*(sqrt(200))) -
    where A2=22, A3=3 and A4=7?


    1. -23
    2. -200
    3. -259.69
    4. -2


    its either 1, 2 3, or 4! Im totally stumped! :-9


    Like I said with the other question I asked- I tried doing it but I don't know where to start! They expect me to do the questions but give no classes in how to do them (strange way of doing things eh).

  2. #2
    pinmaster
    Guest
    It would help if we knew what the formula's results was suppose to be.

    JG

  3. #3
    Registered User
    Join Date
    12-22-2005
    Posts
    8

    Help

    Hi

    That's all that was said in the question. I've tried doing it, but I can't!

  4. #4
    pinmaster
    Guest
    Without knowing the formula's result it's impossible to give an answer.

    Regards
    JG

  5. #5
    Registered User
    Join Date
    12-22-2005
    Posts
    8

    Help

    Hi

    I've had this type of problem with the questions before - in that the questions were vague or poorly worded and the answer didn't 'add up'. This may be another case of this!

    Many Thanks for your help anyway!

    Have a good Christmas/New Year

    G

  6. #6
    Max
    Guest

    Re: My first question!

    "Deadloss" wrote:
    > .. Use the 'Goal seek' option on the 'Data' menu to find the value of cell
    > A1 in the following formula - =sum(A1+A2+A3+A4+33*(sqrt(200))) -
    > where A2=22, A3=3 and A4=7?


    Perhaps try something along these lines
    to grasp a feel on using the Goal Seek* functionality ..
    *It's on the Tools menu, not Data menu

    Let's say we have the formula in B1:
    =sum(A1+A2+A3+A4+33*(sqrt(200)))
    and we have in: A2=22, A3=3 and A4=7

    Assume we want to find out what the value in A1 should be for B1 to resolve
    to a target value of say, 100, given the values in the other dependent cells
    A2, A3 and A4

    Select B1
    Click Tools > Goal Seek

    In the Goal Seek dialog,
    ensure/make the settings as:

    Set cell: B1
    To value: 100 (< target value for B1)
    By changing cell: A1

    Click OK

    The Goal Seek Status dialog will show that a solution has been found,
    and we'd get the computed value in A1: -398.69
    If we click OK, the dialog will dismiss and the value in A1 will be
    retained.
    If we click Cancel, the dialog will dismiss w/o any changes to the pre-run
    state.
    --
    Rgds
    Max
    xl 97
    ---
    Singapore, GMT+8
    xdemechanik
    http://savefile.com/projects/236895
    --



  7. #7
    pinmaster
    Guest
    Max
    The problem is he doesn't have a target value to work with so it's almost impossible to get an answer for the question that was given to him.

    Regards
    JG

  8. #8
    Max
    Guest

    Re: My first question!

    > .. in B1: =SUM(A1+A2+A3+A4+33*(SQRT(200)))

    Forgot to add that the formula in B1 could be simplified to:
    =SUM(A1:A4,33*(SQRT(200)))

    (with the extraneous "+"'s within SUM() removed)
    --
    Rgds
    Max
    xl 97
    ---
    Singapore, GMT+8
    xdemechanik
    http://savefile.com/projects/236895
    --



  9. #9
    Max
    Guest

    Re: My first question!

    "pinmaster" wrote:
    > Max
    > The problem is he doesn't have a target value to work with so it's
    > almost impossible to get an answer for the question that was given to
    > him.


    Yes, I kinda figured that the target value was missing, but thought that may
    not be the only thing that was not known to the OP. FWIW, the simple
    illustration on using Goal Seek should still serve a purpose here, I guess.
    Cheers.
    --
    Rgds
    Max
    xl 97
    ---
    Singapore, GMT+8
    xdemechanik
    http://savefile.com/projects/236895
    --



  10. #10

    Re: My first question!

    "pinmaster" wrote:
    > Without knowing the formula's result it's impossible
    > to give an answer.


    "Deadloss" wrote:
    > That's all that was said in the question. I've tried
    > doing it, but I can't!


    Nor can anyone. Do you understand "pinmaster's" point?
    Without knowing what SUM(A1:A4)+33*SQRT(200) should
    add up to, it is impossible to determine what A1 should be,
    given A2:A4.

    That said, of the choices give by you, my money is on A1
    being -259.69. The reason: then
    SUM(A1:A4)+33*SQRT(200) is about 239 -- a round
    number. Teachers usually like to use round numbers for
    problems; and all the other terms are round numbers
    (22, 3, 7, 33, 200). All the other choices that you
    provide for A1 result in SUM(A1:A4)+33*SQRT(200)
    equal to xxx.69 -- not a round number.


  11. #11
    pinmaster
    Guest
    -259.69 would be my "guess" also but a guess is still just a guess and not a definite answer.

    JG

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