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12 February, 10:28

12 people have entered a chess tournament. Each person is scheduled to lay every other person once. How many games are scheduled for the tournament?

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Answers (2)
  1. 12 February, 10:46
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    (12 * 11) / 2 = 66 games

    C (12,2) - - > combination of 12 taken 2 at a time = 66
  2. 12 February, 10:57
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    12 * 12 equals 144. Each person plays every other person.
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