Posted by **Mathslover Please help** on Wednesday, May 8, 2013 at 1:58am.

Four players are playing a game involving choosing positions on a grid of size 3×8. 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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**Anonymous**, Sunday, May 12, 2013 at 3:54am
773

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