Tuesday, February 1, 2011

Parents, give math puzzles to your children


How about starting the tradition of giving math riddles, puzzles to your children?

Here's an old one, and still a good puzzle:

Two old women started at sunrise and each walked at a constant velocity. One went from A to B and the other from B to A. They met at noon and, continuing with no stop, arrived respectively at B at 4 p.m. and at A at 9 p.m. At what time was the sunrise on this day?

No comments:

Post a Comment