Thanks ,
B. 6/41
C. 41/60
D. 11/12
1 ) Each player plays with every other only 1 game.
2 ) If in the i-th round there is a game between A and B, and a game between C and D, and in the i+1-th round there is a game between A and C, then in the i+1-th there must be a game between B and D.
On how many different ways can we make a schedule for all rounds if it's not important which player plays on which table?
Answer: 6 months
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