Late for school

Oh today is such a sad day, It was unfortunate that I was late today, I haven't tried the new rule yet, so this is my very first time. We are supposed to run around the very tiny little fountain near the General Office for 5 minutes. I take about 10 seconds run around the circumference of the fountain. It's about 10 m in diameter, so logically, a fountain with 1m in diameter should take me 1 sec :)