Question

A car covers first 50 km of its journey in 45 minute next 50 km in half an hour and the next 50 km in 1 hour .find its average speed for the journey

Answer 1

Explanation:

time required for covering 50 km distance=45 mins

Time required for covering next 50 km =30 mins

Time required for next 50km=60 mins

Total time required =45+30+60

=135 mins

average=135/3

=45 mins