Mesosphere extends in the altitude zone of –
50 Kms to 80 Kms
Above 80 Kms
80 Kms to 120 Kms
None of the options
A car starts from Bangalore to Mumbai and returns back to Bangalore in 20 hrs. When started the odometer reading was 2200 km and when finished it was 3800 km. Find the average velocity and average speed of the car?