20 km/h
40km per hour
666.67 seconds
Speed = 85/2.5 = 34 mph
40 km per hour. 20 x 2 because that is in a half hour.
40km/hour
It's 25 miles per half-hour, and it's also 50 miles per hour.
Average speed is distance over time, so (25 + 35)/(.5 + 1.5) = 60/2 = 30 km/hr
Just divide distance by time to get speed.30 miles / 1.5 hrs = 20 MPH
If a car travels 50 km in a half hour, it would travel 100 km in one hour. Therefore, a car traveling 50 km in a half hour is averaging 100 km per hour.
3-4 Miles Per Hour
Ok but did I ask?
60 km an hour