In a race, John runs 1.00 mile in 4.02 min, mounts a bicycle, and rides back to his starting point, which is also the finish line, in 3.02 min. What is the magnitude of John's average velocity for the race?
1. 14.9 mi/h
2. 17.0 mi/h
3. 12.1 mi/h
4. 19.9 mi/h
5. zero mi/h