Please turn on javascript in your browser to play chess.
Posers and Puzzles

Posers and Puzzles

  1. 07 Jan '05 10:41
    Fill in the digits 1 to 9 at the positions marked [] in the following , so as to satisfy the equation.

    []/[][] + []/[][] + []/[][] = 1.
    No digit is to be repeated; each digit should be used but once.
    For example a/bc would mean a/(10*b+c).
  2. Standard member The Plumber
    Leak-Proof
    07 Jan '05 18:43
    Originally posted by observantU
    Fill in the digits 1 to 9 at the positions marked [] in the following , so as to satisfy the equation.

    []/[][] + []/[][] + []/[][] = 1.
    No digit is to be repeated; each digit should be used but once.
    For example a/bc would mean a/(10*b+c).
    After trying some 2300 different combinations, this is the answer I've come up with:

    9/12 + 5/34 + 7/68 = 1
  3. 08 Jan '05 10:18
    Originally posted by The Plumber
    After trying some 2300 different combinations, this is the answer I've come up with:

    9/12 + 5/34 + 7/68 = 1
    I think this is the only solution possible. .