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Thread: Math problems

  1. #41
    kitex973 is offline Banned Newbie
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    (365*8000)/3.14)/(6.67*10^-14)/100000

  2. #42
    jamie1990 is offline Senior Member Always Around
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    22

    [[[[[[[[[[[[[[

  3. #43
    darkus-s6 is offline Senior Member Always Around
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    Is it 728??

    "sleep with me tonight, sweety" ~sakura_hana~

  4. #44
    irecinius is offline Senior Member Community Builder
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    Quote Originally Posted by jamie1990 View Post
    22

    [[[[[[[[[[[[[[

    You are very right, jamie!
    if you go to 23, it will give you fractions~
    "Chile is a thin and tall country"

  5. #45
    shautieh's Avatar
    shautieh is offline Senior Member Community Builder
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    There are no problems going on ? Anyone ? (not that I have time nowadays though )

  6. #46
    Urameshi-sama is offline Senior Member Community Builder
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    ^Seconded. The problems here are slowly refreshing me from my math rustiness, even if I am not among the people to get the answer first
    Stolen Sig Count: 26

  7. #47
    irecinius is offline Senior Member Community Builder
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    Well it was supposed to be jamie turn..
    "Chile is a thin and tall country"

  8. #48
    darkus-s6 is offline Senior Member Always Around
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    Lightbulb new problem

    well since nobody has posted a new problem in a while i'll go ahead with a new one:

    Consider a large jar of custer sugar, an unmarked balance and a 1 gram weight. What is the minimum number of weighing operations by which 1 kg of sugar is measured, and how is that procedure.

    "sleep with me tonight, sweety" ~sakura_hana~

  9. #49
    Volvogga's Avatar
    Volvogga is offline Senior Member Always Around
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    umm... if I remember my physics correctly, it can be done in one go. You just need to place the 1 gram weight 1000 times the distance away from the fulcrum as the distance between the fulcrum and the sugar.

    so... 1Kg|sugar-fulcrum-{1000x}-1g|weight

    or... close enough, you get my meaning.
    Vol~

    thanks to Silverwmoon!

  10. #50
    adonai is offline Senior Member Community Builder
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    ^ I'm pretty sure that it's supposed to "equal" = "balanced".

    In which case it is:

    1
    2
    4
    8
    16
    32
    64
    128
    256
    512
    1024

    minus 16 and 8

    So 15 measurements in total


    At each step the scale is balanced and the amounts are pooled together, with the exception of 8 and 16, which are measured twice with one set put aside, this is then used in 2 more measurements to subtract 8 and 16 from 1024. So, 11 measurements to get to 1024, along with 2 extra measurements of 16 and 8, then another 2 measurements of 16 and 8 at the end (this time taken from the pool of sugar instead of the jar).
    Last edited by adonai; 03-12-2008 at 03:37 PM.

 

 
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