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Thursday, August 12, 2010

If:
O plus T = T
O plus S = S
T plus T = F
F plus F = E
E plus O = N

What is N - N?

6 comments:

  1. Oh. I almost commented saying, "Is this a trick? N-N is zero." Then I realized you were looking for which LETTER would represent N-N. I gotcha. (And Anonymous is right: it's O.)

    ReplyDelete
  2. Wouldn't N-N=Z?

    O isn't zero in this problem, it's one. The letters are the first letter of the numbers. The problem would read "one plus two = three, one plus six = seven, two plus three = five, four plus four = eight, eight plus one = nine." So, N-N, or nine minus nine, equals zero, which is Z.

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  3. The answer should be N-N = Z

    The key is
    One plus Two = Three
    One plus Six = Seven
    Two plus Two = Four (or Two plus Three = Five)
    Four plus Four = Eight
    Eight plus One = Nine

    And so Nine - Nine = Zero.

    ReplyDelete
  4. The answer should be N-N = Z
    tht a tricky qsn
    The key
    One plus Two = Three
    One plus Six = Seven
    Two plus Two = Four (or Two plus Three = Five)
    Four plus Four = Eight
    Eight plus One = Nine

    And so Nine - Nine = Zero.

    ReplyDelete

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