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Author Topic: A fun question  (Read 10594 times)

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yanng1

    Topic Starter


    Beginner

    A fun question
    « on: September 06, 2007, 08:59:12 PM »

    My professor asked me this.  It is not for credit, I think he's just having fun with me.
    Try to answer this question:

    Rex, Ham, Woody & Buzz are crossing a bridge.
    In order for anyone to cross they need the 1 flashlight they have.
    The bridge can support only 2 of them at any time (any 2 doesn't matter).
    The flashlight battery has 1 hour left on it.

    It takes woody 10 minutes to cross, Buzz 5 minutes, Ham 25 minutes and Rex 20 minutes to cross. 

    how can this be done with only 1 hour of flashlight life?
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    Comp Guy



      Apprentice

    • All that is needed
      Re: A fun question
      « Reply #1 on: September 06, 2007, 10:02:41 PM »
      Wow, are you sure there is a solution to this?
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      yanng1

        Topic Starter


        Beginner

        Re: A fun question
        « Reply #2 on: September 06, 2007, 10:47:28 PM »
        No.  It is possible that this question=undefined.  But I feel like there is an answer.
        PS.  no cheating like, "buzz can fly, or carry woody"
        Im looking for 'computer science' answers.
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        Comp Guy



          Apprentice

        • All that is needed
          Re: A fun question
          « Reply #3 on: September 06, 2007, 10:50:49 PM »
          If Buzz were to go across with each of them, and then come back to get the next person, the time would be 65 minutes. Hence, still exceeding the hour limit.
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          mektek



            Hopeful
          • Witty comment to be advised
            • Thanked: 1
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            • OS: Windows 7
            Re: A fun question
            « Reply #4 on: September 07, 2007, 09:38:54 AM »
            The two fastest go across. 10 minutes
            The fastest returns with torch 5 minutes
            the two slowest go across 25 minutes
            The second fastest returns 10minutes
            the two fast go across again 10 minutes

            Total 60 minutes - What do i win?
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            A computer that was working until tinkering broke it

            yanng1

              Topic Starter


              Beginner

              Re: A fun question
              « Reply #5 on: September 07, 2007, 11:15:50 AM »
              Very good mek-tek.  Thank you.  Can I ask how long it took you? 

              -I got nothing to offer, but I think the computer hope Admin should bump you up from beginner. 
              that was more than a real 'beginner' would have got.
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              Ivy

              • Guest
              Re: A fun question
              « Reply #6 on: September 07, 2007, 11:23:37 AM »
              Level of expertise dont depend on how smart a person is , it depends on how many posts a person has( i guess smart people have more posts :-\), any way super kool proven again  8).


              P.S. whats the matter Mektek you dont even attend great weddings anymore, even when you are invited!!!!!!!!!
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              yanng1

                Topic Starter


                Beginner

                Re: A fun question
                « Reply #7 on: September 07, 2007, 11:33:22 AM »
                I know, ivy.  I was telling mek tek that his quality outweighs his quantity.  The commendation for his status remains though. 
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                Ivy

                • Guest
                Re: A fun question
                « Reply #8 on: September 07, 2007, 11:44:38 AM »
                Quote from: yanng1 on September 07, 2007, 11:33:22 AM
                I know, ivy.  I was telling mek tek that his quality outweighs his quantity.  The commendation for his status remains though. 
                What i was refring to was a joke or a locked thread called level of expertise, so just chill  :)
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                Richenstony

                • Guest
                Re: A fun question
                « Reply #9 on: September 07, 2007, 01:09:03 PM »
                GET HIM IVY  ;D ;D ;D  :P
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                Ivy

                • Guest
                Re: A fun question
                « Reply #10 on: September 07, 2007, 01:11:50 PM »
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                Richenstony

                • Guest
                Re: A fun question
                « Reply #11 on: September 07, 2007, 01:57:06 PM »
                ya told him to chill :D
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                Ivy

                • Guest
                Re: A fun question
                « Reply #12 on: September 07, 2007, 02:10:46 PM »
                To chill is to relax :)
                and where on the earth is pekerwood !!!!!!!!!
                i had heard of a run away bride but pekerwood is the first runaway bridegroom!!!!!!
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                Comp Guy



                  Apprentice

                • All that is needed
                  Re: A fun question
                  « Reply #13 on: September 07, 2007, 02:56:43 PM »
                  Wow I cannot believe I didn't think of that! I was close though :P

                  Good job, mektek! :D
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                  unlovedwarrior



                    Guru

                  • someday this name will be known
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                    Re: A fun question
                    « Reply #14 on: September 07, 2007, 10:23:36 PM »
                    Quote from: Ivy on September 07, 2007, 11:23:37 AM
                    Level of expertise dont depend on how smart a person is , it depends on how many posts a person has( i guess smart people have more posts :-\), any way super kool proven again  8).


                    P.S. whats the matter Mektek you dont even attend great weddings anymore, even when you are invited!!!!!!!!!

                    post counts don't mean anything in here its just a name what counts is the quality of the posts you make and the advise you give
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