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Posers and Puzzles

Posers and Puzzles

  1. Standard member genius
    Wayward Soul
    26 Mar '03 21:40
    a blind man is alone in a room with 100 coins. 90 are heads, 10 are tails. he cannot feel which ones are heads or tails. how can he get two piles of coins with an equal number of tails in each pile?
  2. 27 Mar '03 11:26
    What is a blind man doing in a room on his own? Is the door open or has he been locked in? 'Cos that contravenes health and safety regulations. If he can find an exit, he can just take all the coins and be well rich!
  3. 30 Mar '03 20:59
    good point
  4. 30 Mar '03 21:51 / 1 edit
    Originally posted by genius
    a blind man is alone in a room with 100 coins. 90 are heads, 10 are tails. he cannot feel which ones are heads or tails. how can he get two piles of coins with an equal number of tails in each pile?
    split it 50/50 because coins have a head on 1 side and tails on the other
  5. 31 Mar '03 06:24
    Originally posted by genius
    a blind man is alone in a room with 100 coins. 90 are heads, 10 are tails. he cannot feel which ones are heads or tails. how can he get two piles of coins with an equal number of tails in each pile?
    Turn 10 coins. Then create two piles of ten coins.


    I think !!!

  6. Standard member genius
    Wayward Soul
    01 Apr '03 21:18
    Originally posted by trekkie
    Turn 10 coins. Then create two piles of ten coins.


    I think !!!

    he could still make a pile of 10 heads and 10 tails though...
  7. 03 Apr '03 11:20
    It is only possible if he has two piles of no coins
  8. Standard member genius
    Wayward Soul
    03 Apr '03 21:16
    Originally posted by Mock True
    It is only possible if he has two piles of no coins
    no-it is perfectly poissible. if you want i can post the answer...it's one of these problems that you either see it at first, or usually don't see it...and trekkie-u are almost there!...
  9. Donation Acolyte
    Now With Added BA
    04 Apr '03 08:12
    Originally posted by genius
    no-it is perfectly poissible. if you want i can post the answer...it's one of these problems that you either see it at first, or usually don't see it...and trekkie-u are almost there!...
    Haven't you already posted a very similar puzzle? Anyway, the answer is he spilts the coins 90/10 and turns over the coins in the smaller pile.
  10. Standard member genius
    Wayward Soul
    04 Apr '03 16:40
    Originally posted by Acolyte
    Haven't you already posted a very similar puzzle? Anyway, the answer is he spilts the coins 90/10 and turns over the coins in the smaller pile.
    yeah-that's right. i wasn't sure if i'd posted it before, so i posted it anyway i probubly did...
  11. 06 Apr '03 17:54
    D'oh!!!
  12. Standard member genius
    Wayward Soul
    08 Apr '03 16:40
    Originally posted by genius
    yeah-that's right. i wasn't sure if i'd posted it before, so i posted it anyway i probubly did...
    http://www.redhotpawn.com/board/showthread.php?id=3749
    i did...
  13. 10 Apr '03 03:56
    Originally posted by genius
    a blind man is alone in a room with 100 coins. 90 are heads, 10 are tails. he cannot feel which ones are heads or tails. how can he get two piles of coins with an equal number of tails in each pile?
    He builds 25 piles, there must be two piles with the same number of tails