Air distance between Kota to Jaipur is 260 km and road distance is 320 km. A deluxe bus which moves from Jaipur to Kota takes 8 hrs while an aeroplane reaches in just 15 mins. Find
A. The average speed of the bus in km/h
B. The average velocity of the bus in km/h
C. The average speed of the aeroplane in km/h
D. The average velocity of the aeroplane in km/h