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visits member for 3 years, 6 months
seen Dec 26 '13 at 23:05

Jul
29
comment Comparing infinite numbers
This is a clear answer, thank you.
Jul
29
comment Comparing infinite numbers
That should be every real number. I also fixed it in the question.
Feb
4
comment Where is $1 gone!
The total is indeed 25, but the men paid 30. The waiter should give 5 back, but keeps 2 of these 5, thus giving 3 back.