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# Calculate the average speed in km h of a car that drives 140 kilometers in two hours?

Updated: 8/11/2023 Marjeeee

Lvl 1
8y ago

if u want speed do distance divide by time but first u need to change 120 km to meters and 2 hours to minutes then divide them

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Why change km to metres and hours to minutes? Why not just do 120 km / 2 hours = 120/2 km per hour = 60 km per hour. The end! Wiki User

9y ago   Wiki User

12y ago

Let us change 70.0 m/s to kph

70.0 m/s (1 kilometer/1000 meters)(3600 seconds/1 hour)

= 252 kilometer an hour

Distance = Rate * Time

Distance = 252 Kph * 6.5 hours

= 1638 Kilometers   Wiki User

13y ago

Average speed = (total distance) / (total time)

Total distance = (112 + 182) = 294 km

Total time = (112/79 + 182/100) = 3.2377 hours (rounded).

Average speed = (294 / 3.2377) = 90.805 km/hr(rounded)   Wiki User

13y ago   Wiki User

8y ago

To calculate the average speed simply divide the distance by the hours driven. 140 kilometers divided by 2 hours equals 70 kilometers per hour.   Wiki User

12y ago

The average speed is 70.2 km/h   Wiki User

8y ago

18.06 meters per second.   Wiki User

5y ago

Her average speed is... 20 Km/h   Wiki User

14y ago

42   Wiki User

11y ago

32 km/h   Earn +20 pts  