A Gender Balance Puzzler
Here’s an unusual puzzle, like so many puzzles of this type, alleged to be asked as an interview question at high-tech companies. It seems one is going to be locked into infinite sums: half the couples have just one boy, a quarter of the couples have one boy and one girl, an eighth of the couples have two girls and one boy, and so on, and thus … err …. But there is a way to avoid hard work with this puzzle. Jolly fun!