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December 20, 2014

Homework Help: math

Posted by Mathslover Please help on Sunday, May 5, 2013 at 11:39pm.

Four players are playing a game involving choosing positions on a grid of size 38. Each player chooses a random position on the grid, then all players reveal their choices and a token is placed on each of the positions. The probability that the tokens form the vertices of a non-degenerate rectangle can be expressed as a/b where a and b are coprime positive integers. What is the value of a+b?

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