Joe had walked half way from home to school when he realized he was late. He ran the rest of the way to school. He ran 3 times as fast as he walked. Joe took 6 minutes to walk half way to school. How many minutes did it take Joe to get from home to school?
Answer Choices
A. 7
B. 7.3
C. 7.7
D. 8
E. 8.3