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Annoying IQ Test

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  • L Lost User

    If that's really an equivalence on integers, I'm pretty sure it can be proven that x = y for all x and y that are integers. edit: actually, I'm not sure anymore. If this equivalence is assumed, do the usual integer axioms still hold? Is math still possible?

    L Offline
    L Offline
    Lost User
    wrote on last edited by
    #11

    I think I'm onto the right way, but don't have it quite right yet: if there really is a function f(x), so that f(1) = 5, f(2) = 125, f(3) = 450 and f(4) = 1250 then this may help f(1) = 5 = 5^1 = 5^x f(2) = 125 = 5^3 = 5 ^ (x+1) = 5 * 5^x f(3) = 450 = 3.6 * 5^x f(4) = 1250 = 2 * 5^x At least I have found a way to show that all values are multiples of 5^x. If we bring this into the right form, we probably will quickly see the solution. Edit My current guess for f(5) would be around 5^x = 5^5 = 3125

    I'm invincible, I can't be vinced

    L 1 Reply Last reply
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    • U unknowndentified10111

      Someone ask me this IQ Test and I got really annoyed when I found out the answer. Here it is: If 1 = 5, and 2 = 125, and 3 = 450, and 4 = 1250, then 5 = ?

      L Offline
      L Offline
      leppie
      wrote on last edited by
      #12

      2795 :) f(x) = round(-179.9813978 + 307.4704136*x + -167.4867127*x*x + 44.99822836*x*x*x)

      IronScheme
      ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

      CPalliniC G 2 Replies Last reply
      0
      • L Lost User

        I think I'm onto the right way, but don't have it quite right yet: if there really is a function f(x), so that f(1) = 5, f(2) = 125, f(3) = 450 and f(4) = 1250 then this may help f(1) = 5 = 5^1 = 5^x f(2) = 125 = 5^3 = 5 ^ (x+1) = 5 * 5^x f(3) = 450 = 3.6 * 5^x f(4) = 1250 = 2 * 5^x At least I have found a way to show that all values are multiples of 5^x. If we bring this into the right form, we probably will quickly see the solution. Edit My current guess for f(5) would be around 5^x = 5^5 = 3125

        I'm invincible, I can't be vinced

        L Offline
        L Offline
        leppie
        wrote on last edited by
        #13

        I went brute force ;p See my latest answer.

        IronScheme
        ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

        L 1 Reply Last reply
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        • L leppie

          2795 :) f(x) = round(-179.9813978 + 307.4704136*x + -167.4867127*x*x + 44.99822836*x*x*x)

          IronScheme
          ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

          CPalliniC Offline
          CPalliniC Offline
          CPallini
          wrote on last edited by
          #14

          50000000 :) algo:

          switch(in)
          {
          case 1:
          return 5;
          case 2:
          return 125;
          case 3:
          return 450;
          case 4:
          return 1250;
          default:
          return 50000000;
          }

          :laugh:

          If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
          This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
          [My articles]

          In testa che avete, signor di Ceprano?

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          • L leppie

            2795 :) f(x) = round(-179.9813978 + 307.4704136*x + -167.4867127*x*x + 44.99822836*x*x*x)

            IronScheme
            ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

            G Offline
            G Offline
            Gary Wheeler
            wrote on last edited by
            #15

            Wolfram Alpha, anyone? Or is Mathematica your bitch?

            Software Zen: delete this;

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            • D Dalek Dave

              Because that is reserved for larger values of Pi.

              ------------------------------------ I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave CCC Link[^] Trolls[^]

              L Offline
              L Offline
              Lost User
              wrote on last edited by
              #16

              My current guess would be 5^x = 3125

              I'm invincible, I can't be vinced

              1 Reply Last reply
              0
              • G Gary Wheeler

                Wolfram Alpha, anyone? Or is Mathematica your bitch?

                Software Zen: delete this;

                L Offline
                L Offline
                leppie
                wrote on last edited by
                #17

                Gary Wheeler wrote:

                Wolfram Alpha, anyone? Or is Mathematica your bitch?

                Neither. Used http://creativemachines.cornell.edu/eureqa[^] :) Trying to find an 'integer' solution though. But 4 points is a little too little to infer a pattern :(

                IronScheme
                ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

                1 Reply Last reply
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                • L leppie

                  I went brute force ;p See my latest answer.

                  IronScheme
                  ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

                  L Offline
                  L Offline
                  Lost User
                  wrote on last edited by
                  #18

                  Do me one favor: Please try out the factors of 1, 5, 3.6 and 2 I got for X = 1, 2, 3 ,4 in this math software. What factor would be for x = 5?

                  I'm invincible, I can't be vinced

                  L 1 Reply Last reply
                  0
                  • L Lost User

                    Do me one favor: Please try out the factors of 1, 5, 3.6 and 2 I got for X = 1, 2, 3 ,4 in this math software. What factor would be for x = 5?

                    I'm invincible, I can't be vinced

                    L Offline
                    L Offline
                    leppie
                    wrote on last edited by
                    #19

                    Not quite sure how to input that into the software :(

                    IronScheme
                    ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

                    L 1 Reply Last reply
                    0
                    • L leppie

                      Not quite sure how to input that into the software :(

                      IronScheme
                      ((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

                      L Offline
                      L Offline
                      Lost User
                      wrote on last edited by
                      #20

                      input the points (1,1), (2,5), (3, 3.6) and (4, 2). I would like to know the value for (5, ?). I guessed that value to be 1 and then f(5) would be 3125. If your program can extrapolate a more precise value, we will se how good your brute force result and mine match.

                      I'm invincible, I can't be vinced

                      1 Reply Last reply
                      0
                      • U unknowndentified10111

                        Someone ask me this IQ Test and I got really annoyed when I found out the answer. Here it is: If 1 = 5, and 2 = 125, and 3 = 450, and 4 = 1250, then 5 = ?

                        R Offline
                        R Offline
                        Ravi Sant
                        wrote on last edited by
                        #21

                        13750

                        // ♫ 99 little bugs in the code, // 99 bugs in the code // We fix a bug, compile it again // 101 little bugs in the code ♫

                        1 Reply Last reply
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                        • U unknowndentified10111

                          Someone ask me this IQ Test and I got really annoyed when I found out the answer. Here it is: If 1 = 5, and 2 = 125, and 3 = 450, and 4 = 1250, then 5 = ?

                          N Offline
                          N Offline
                          NormDroid
                          wrote on last edited by
                          #22

                          4500

                          Software Kinetics Wear a hard hat it's under construction
                          Metro RSS

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                          0
                          • U unknowndentified10111

                            Someone ask me this IQ Test and I got really annoyed when I found out the answer. Here it is: If 1 = 5, and 2 = 125, and 3 = 450, and 4 = 1250, then 5 = ?

                            V Offline
                            V Offline
                            V 0
                            wrote on last edited by
                            #23

                            42

                            V.

                            1 Reply Last reply
                            0
                            • U unknowndentified10111

                              Someone ask me this IQ Test and I got really annoyed when I found out the answer. Here it is: If 1 = 5, and 2 = 125, and 3 = 450, and 4 = 1250, then 5 = ?

                              H Offline
                              H Offline
                              hairy_hats
                              wrote on last edited by
                              #24

                              4050

                              1 Reply Last reply
                              0
                              • U unknowndentified10111

                                Someone ask me this IQ Test and I got really annoyed when I found out the answer. Here it is: If 1 = 5, and 2 = 125, and 3 = 450, and 4 = 1250, then 5 = ?

                                L Offline
                                L Offline
                                Luc Pattyn
                                wrote on last edited by
                                #25

                                As is often the case, there are an infinite number of correct answers. Examples: the cubic polynomial yields: 5 => 2785 one of the infinite number of fourth order polynomials yields: 5 => -1155 :)

                                Luc Pattyn [My Articles] Nil Volentibus Arduum


                                Fed up by FireFox memory leaks I switched to Opera and now CP doesn't perform its paste magic, so links will not be offered. Sorry.

                                L 1 Reply Last reply
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                                • L Luc Pattyn

                                  As is often the case, there are an infinite number of correct answers. Examples: the cubic polynomial yields: 5 => 2785 one of the infinite number of fourth order polynomials yields: 5 => -1155 :)

                                  Luc Pattyn [My Articles] Nil Volentibus Arduum


                                  Fed up by FireFox memory leaks I switched to Opera and now CP doesn't perform its paste magic, so links will not be offered. Sorry.

                                  L Offline
                                  L Offline
                                  Lost User
                                  wrote on last edited by
                                  #26

                                  Except that IQ tests don't usually require curve fitting software. There is a pattern here - that's the IQ bit. At the moment mine is 75.

                                  Peter Wasser

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                                  • L Lost User

                                    Except that IQ tests don't usually require curve fitting software. There is a pattern here - that's the IQ bit. At the moment mine is 75.

                                    Peter Wasser

                                    L Offline
                                    L Offline
                                    Luc Pattyn
                                    wrote on last edited by
                                    #27

                                    pwasser wrote:

                                    mine is 75

                                    You're half asleep then? :)

                                    Luc Pattyn [My Articles] Nil Volentibus Arduum


                                    Fed up by FireFox memory leaks I switched to Opera and now CP doesn't perform its paste magic, so links will not be offered. Sorry.

                                    L 1 Reply Last reply
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                                    • L Luc Pattyn

                                      pwasser wrote:

                                      mine is 75

                                      You're half asleep then? :)

                                      Luc Pattyn [My Articles] Nil Volentibus Arduum


                                      Fed up by FireFox memory leaks I switched to Opera and now CP doesn't perform its paste magic, so links will not be offered. Sorry.

                                      L Offline
                                      L Offline
                                      Lost User
                                      wrote on last edited by
                                      #28

                                      Luc Pattyn wrote:

                                      You're half asleep then?

                                      Yes that's my excuse.

                                      Peter Wasser

                                      1 Reply Last reply
                                      0
                                      • L Lost User

                                        Except that IQ tests don't usually require curve fitting software. There is a pattern here - that's the IQ bit. At the moment mine is 75.

                                        Peter Wasser

                                        L Offline
                                        L Offline
                                        Luc Pattyn
                                        wrote on last edited by
                                        #29

                                        pwasser wrote:

                                        don't usually require curve fitting

                                        then it is 990 :)

                                        Luc Pattyn [My Articles] Nil Volentibus Arduum


                                        Fed up by FireFox memory leaks I switched to Opera and now CP doesn't perform its paste magic, so links will not be offered. Sorry.

                                        1 Reply Last reply
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                                        • U unknowndentified10111

                                          Someone ask me this IQ Test and I got really annoyed when I found out the answer. Here it is: If 1 = 5, and 2 = 125, and 3 = 450, and 4 = 1250, then 5 = ?

                                          W Offline
                                          W Offline
                                          W Balboos GHB
                                          wrote on last edited by
                                          #30

                                          "1" was the logical answer, but, as it wasn't confirmed, I tried to examine this as a what's-next-in-series type of question. This just didn't make it, and, as it was presented as part of an IQ test, brute force methods are (should be) excluded. So I googled "1=5 2=25" and came up with: http://www.google.com/support/forum/p/blogger/thread?tid=2570697c07e3c6e3&hl=en[^] The poster of the question (a level seven whatever it is) congratulated other posters on their correct answer: 1 So why, exactly, were you annoyed?

                                          "The difference between genius and stupidity is that genius has its limits." - Albert Einstein

                                          "As far as we know, our computer has never had an undetected error." - Weisert

                                          "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

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