An artist in a circus moves along the hexagonal path of each side 20 metres in such a way that for the first 20 meters he goes with a speed of 20 m/s and the next 20 meters with a speed of 10m/s. similarly he continuous for the rest of the hexagonal path with the same alternating speed i.e , 20 m/s and 10m/s . the average speed of the artist per round of the circus is :

Options

A. 13.33 m/s
B. 23.66 m/s
C. `39(1)/3`
D. 15m/s

Answer

A