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Posers and Puzzles

Posers and Puzzles

  1. 26 Sep '07 16:29
    Here is a puzzle I heard today - It's ok

    What do these numbers relate to?

    1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000
  2. Standard member Mitsurugi
    Not the dead
    26 Sep '07 17:14 / 1 edit
    x0 = 1
    x1 = 2
    x2 = 3

    Xn = Xn-3 * 10, n > 2

    What's so puzzling about it?
  3. 26 Sep '07 17:27
    Originally posted by The Ewanator
    Here is a puzzle I heard today - It's ok

    What do these numbers relate to?

    1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000
    If we refer to the American financial system, is the color perhaps green...?
  4. Standard member HandyAndy
    Non sum qualis eram
    26 Sep '07 18:50
    Originally posted by FabianFnas
    If we refer to the American financial system, is the color perhaps green...?
    No, not currency. There aren't, and never have been, $200 or $2000 bills, and denominations of $500, $1000 and $5000 are no longer in production.
  5. Standard member SwissGambit
    Caninus Interruptus
    26 Sep '07 20:25
    Originally posted by FabianFnas
    If we refer to the American financial system, is the color perhaps green...?
    We don't issue the $2 bill anymore, and I don't think we've ever had a $200 or $2000 bill.
  6. Standard member SwissGambit
    Caninus Interruptus
    26 Sep '07 20:35
    Originally posted by Mitsurugi
    x0 = 1
    x1 = 2
    x2 = 3

    Xn = Xn-3 * 10, n > 2

    What's so puzzling about it?
    If I'm reading your notation correctly:

    x5 = x2 * 10
    x5 = 3 * 10
    x5 = 30

    30 doesn't fit the pattern.
  7. Standard member TheMaster37
    Kupikupopo!
    26 Sep '07 20:36
    Originally posted by Mitsurugi
    x0 = 1
    x1 = 2
    x2 = 3

    Xn = Xn-3 * 10, n > 2

    What's so puzzling about it?
    The x2 = 3.
  8. Standard member HandyAndy
    Non sum qualis eram
    27 Sep '07 02:16
    Originally posted by SwissGambit
    We don't issue the $2 bill anymore, and I don't think we've ever had a $200 or $2000 bill.
    You're correct, $200 and $2000 bills never existed. However, though rare, the $2 bill is still being issued.
  9. 27 Sep '07 09:08 / 1 edit
    Originally posted by HandyAndy
    No, not currency. There aren't, and never have been, $200 or $2000 bills, and denominations of $500, $1000 and $5000 are no longer in production.
    Seems to match the British currency system. Think in pence - there isn't a £5000 note, but there is a £50 note which is 5000p. Maybe it matches the US system using cents?
  10. Standard member preachingforjesus
    Iron Pillar
    27 Sep '07 10:15
    Originally posted by The Ewanator
    Here is a puzzle I heard today - It's ok

    What do these numbers relate to?

    1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000
    They're all factors of 10,000

    don't know why 4, 8, 16, 25, 40, 80, 125 aren't listed though
  11. Standard member Mitsurugi
    Not the dead
    27 Sep '07 10:21
    Originally posted by TheMaster37
    The x2 = 3.
    That was obviously a typo :p

    It's x2 = 5
  12. 27 Sep '07 12:57
    What do these numbers relate to?

    1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000
    Is it that these are the numbers that the Romans had letters for?

    Its a guess, hope I don't upset any rabid historians.

    Phil.
  13. Standard member HandyAndy
    Non sum qualis eram
    27 Sep '07 13:39
    Originally posted by The Ewanator
    What do these numbers relate to?

    1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000
    Don't know what it means, but they add up to 8,888. Each group of three adds up to a multiple of 8 (8, 80, 800, 8000).
  14. 27 Sep '07 16:59
    Originally posted by The Ewanator
    Here is a puzzle I heard today - It's ok

    What do these numbers relate to?

    1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000
    According to the wonderful online encyclopedia on integer sequences they are the denominations of Polish banknotes (circa 1995).
    http://www.research.att.com/~njas/sequences/A051109
  15. Subscriber AThousandYoung
    It's about respect
    28 Sep '07 07:35
    Originally posted by MrPhil
    Is it that these are the numbers that the Romans had letters for?

    Its a guess, hope I don't upset any rabid historians.

    Phil.
    No, that would be 1, 5, 10...