Case of the Curious Rows
RAY: The question was, how did the landscaper plant 10 trees in five rows of four each?
TOM: Yeah. How did he do it?
RAY: What the little girl finds on her paper is something that you often find on graded papers from your third-grade teacher. At the top of the page is a star. And if you draw a five-pointed star, and you put a tree at every intersection point and a tree at every vertex, you end up with 10 trees, right?
TOM: Five rows of four trees each. Pretty good!
RAY: Do we have a winner?
TOM: Yes, we do. Our winner is Catherine LaFeriere from Highland, Maryland. Congratulations Catherine!
[ Car Talk Puzzler ]