During a certain period of days in Cucumberland recently it was observed that when it rained in the afternoon, it had been clear in the morning, and when it rained in the morning, it was clear in the afternoon. (In a given morning or afternoon, it is either raining or it is clear.) It rained on 100 days, and was clear on 19 afternoons and 95 mornings. How many days were there altogether?

I too like that answer the best. Plugging in numbers for the variables works, but your method is the simplest and quickest. I think that is the way I would explain it to someone if he or she wanted to know the solution.

Posted by Gamer on 2004-11-02 20:26:07