99.9% Have Failed to Solve This

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24 Responses to 99.924 Have Failed to Solve This

  1. roberta4949 says:

    What is the answer? i want to say 12, of course probably wrong since I do not even understand the question.

  2. Jim Sanders says:

    Scumbag! You don’t know the answer!

  3. aplusclick says:

    I know. A similar problem was posted at http://www.aplusclick.com in Logic section.

  4. Tim says:

    I’d say that 5 -> 4
    and the next step would be 4 -> 4

  5. John F. king says:

    I’ll go with 9. If the number is even, halve it; if it is odd, double and subtract 1.

  6. Quax says:

    If you chose 12 as answer then the pattern becomes a simple permutation.

  7. francesca says:

    name: 12=A; 6=B; 3=C; 5=D.
    draw a square with vertices A, B, C, D
    So, we have:
    A –> B
    B –> C
    C –> D
    It follows: D –> A, it represents one rotation in the Dihedral group of order4

  8. milogardner says:

    Mayans in the Dresden Codex recorded encoded two harder base 13 series to solve

    row two: 11 13 11 1 8 6 4 7 7 13 6 1 3 sums to 91

    row three: 11 13 11 10 5 11 2 4 4 10 3 1 6 sums to 91

    clue: rows 1 and 4 used (1 2 3 4 5 6 7 8 9 10 11 12 13) x 9 =

    9 5 1 10 6 2 11 7 3 12 8 4 13 sums to 91

    with 1 x 9 = 9, 2 x 9 = 18 – 13 = 5, 3 x 9 = 27 – 26 = 1, and so forth

    any hints? love to break the lines 2 and 3 1200 AD codes.

    Milo Gardner

  9. Jonn says:

    There are not enough numbers in the pattern to establish an absolute answer, however one can come up with a number of possibilities.

  10. DJ says:

    5 -> 2

    noon + 5 hrs + 1 hr (total = 6 hrs) = 6:00
    6:00 + 6 hrs (previous total) + 3 hrs (new total = 9 hrs) = 3:00
    3:00 + 9 hrs + 5 hrs (or 3 hrs + 2 hrs) (total now = 14 hrs) = 5:00
    5:00 + 14 hrs + 7 hrs (or 5 hrs = 2 hrs) (total now = 21 hrs) = 2:00
    2:00 + 21 hrs + 9 hrs (total now = 30 hours) = 6:00

    working backwards from step 1:
    noon – 5 hrs = 7:00, but the relationship breaks down in reverse

  11. DJ says:

    Ugh… or “five” has four!

    I liked it better as a clock problem… (I liked the cumulative addition of the incremental odd number…)

  12. Oscar says:

    In my country 12>4 6>4 3>4 5>5 4>6

  13. Andre Kruger says:

    4 is the answer
    10 would be 3

    I Like this one.

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