A car traveling with content speed

Travels 150 km in 7200 s. What is the speed of the car?

The answer is 75 km/h. As per rules of velocity, the accurate measurement is km/h. Therefore, you have to divide 7200 by 3600 to convert it to 2 hours. 3600 is equivalent to 1 hour since 60 seconds is multiplied by 60 minutes. Then, divide 150 by 2 in order to get the actual speed of the car as it runs.