Archives for January 31, 2014

Ask Ethan #22: The no-birthday paradox

“There are three hundred and sixty-four days when you might get un-birthday presents, and only one for birthday presents, you know.” -Lewis Carroll It’s the end of the week once again, and so it’s time for yet another Ask Ethan column! This week, I was asked a wonderful math question by Keith H., who wanted to know: Among…