Anita travelled a distance for 11 minutes at the speed of 35 km/h in an autorickshaw. She travelled for 11 minutes in a taxi at 55 km/h and finally, she travelled for 11 minutes by bus at 42 km/h to reach home. Find her average speed for the whole journey.
1
34 km/h
2
54 km/h
3
44 km/h
4
64 km/h