Sitting uncomfortably in the doctorâ€™s waiting room one day, I stared at the clock on the wall. I had been waiting for what seemed to be a very long time.
To take my mind off the reason for the visit I started to invent little puzzles to solve.
Estimating the length of the minute hand of the clock to be 4 inches, I calculated the distance the hand had travelled around the clock since I arrived to be 15 inches.
How long had I been waiting?