Answer:
average speed = 72.33 km/h
Explanation:
The question asks us to calculate the average speed of a car that has travelled a distance of 325.5 km in 4.5 hours.
To do this, we have to use the following formula:
.
Using this formula, we can calculate the average speed:
average speed =

= 72.33 km/h
Therefore, the average seed of the car is 72.33 km/h.