Math Is the Science of Patterns, Including This One

Patterns come in all sizes and shapes, delighting our senses. Here is one pattern that entertains the ear, the eye and the sense of rhythm.

When 15 > 25?

A customer walked into our auto-parts store looking for a flat washer. "That'll be 15 cents," I said.

"Fifteen cents for a washer? Are you crazy?" he yelled. "I'll drill a hole in a quarter and make my own."

Jack Reeves

[Source: Reader's Digest, August 2009, @Work (p. 67)]