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The New Coffee Room

  1. TNCR
  2. General Discussion
  3. Simple puzzle

Simple puzzle

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  • A Offline
    A Offline
    Axtremus
    wrote on 31 Jul 2020, 10:29 last edited by
    #1

    Saw this as a “thumbnail” screenshot on YouTube. I haven’t watch that video. I think I solved it. It goes like this:

    9 = 72
    8 = 56
    7 = 42
    6 = 30
    ...
    3 = ?

    Have fun!

    1 Reply Last reply
    • J Offline
      J Offline
      jon-nyc
      wrote on 31 Jul 2020, 10:47 last edited by jon-nyc
      #2

      Klaus is going to go ballistic.

      :::

      6

      :::

      Only non-witches get due process.

      • Cotton Mather, Salem Massachusetts, 1692
      K 1 Reply Last reply 31 Jul 2020, 13:39
      • A Offline
        A Offline
        AndyD
        wrote on 31 Jul 2020, 11:25 last edited by
        #3

        LOL Perfect difficulty level. Get all that satisfaction for 10 seconds brainstrain and then move on with your life. The reason I rarely play chess these days

        T 1 Reply Last reply 31 Jul 2020, 13:20
        • A AndyD
          31 Jul 2020, 11:25

          LOL Perfect difficulty level. Get all that satisfaction for 10 seconds brainstrain and then move on with your life. The reason I rarely play chess these days

          T Offline
          T Offline
          taiwan_girl
          wrote on 31 Jul 2020, 13:20 last edited by
          #4

          @AndyD said in Simple puzzle:

          LOL Perfect difficulty level. Get all that satisfaction for 10 seconds brainstrain and then move on with your life. The reason I rarely play chess these days

          Yep. I agree. That was fun

          Either Jon and I both got it right or we both got it wrong. LOL

          1 Reply Last reply
          • J jon-nyc
            31 Jul 2020, 10:47

            Klaus is going to go ballistic.

            :::

            6

            :::

            K Offline
            K Offline
            Klaus
            wrote on 31 Jul 2020, 13:39 last edited by
            #5

            @jon-nyc said in Simple puzzle:

            Klaus is going to go ballistic.

            Indeed! Why do we always have to abuse the poor equality sign in such a bizarre way?

            Why not write: We are looking for an operation f such that f(9) = 72, f(8) = 56, ..."?

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            31 Jul 2020, 10:29


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