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You are not logged in. #1 20121214 06:28:46
Christmas gift rotationOur family gives gifts to only 2 members at a time. We want to have a rotation that allows 3 families to give to each other at a time so they can visit and exchange gifts. There are 11 members how can we do this? I started simply with 123 give to each other, 456, then 789 and then just 2 families 10 and 11. I want the combinations to work so that each family gives to all the other families with as few repeats as possible so the next combo might 1 4 10, 2 5 11, 3 6 9, 5 and 8. Please help with a formula that would work. #2 20121214 07:56:41
Re: Christmas gift rotationHi tlc1971; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #3 20121217 09:29:58
Re: Christmas gift rotationdoes this work for your holiday?? igloo myrtilles fourmis #4 20121224 15:35:54
Re: Christmas gift rotationLet me explain better. #5 20121224 21:47:33
Re: Christmas gift rotationHi; Each row represents a year. You were correct for the first two years. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 