Akash travels the distance from his home to school in three equal parts on his bicycle at a speed of 5 km/h, 10 km/h and 15 km/h, respectively. What is the average speed of Akash going from his home to school?

A

$$9\frac{1}{11}$$

B

10 km\h

C

$$8\frac{2}{11}$$

D

11 km\h