Math sumit drives his car at a constant rate of 40 km h-1 for one hour. what is it"s average speed? sumit drives his car at a constant rate of 40 km h-1 for one hour.find his average speed. Asked by prateek on 12 Jun 10:26 Last updated by anonymous on 14 Jun 10:28

If the person is driving at a constant rate of 40 km per hour for one hour then their average speed is .6km per min (40km/60min).