9514 1404 393
Answer:
25 km/h
Explanation:
The relation between speed, time, and distance is ...
speed = distance/time
distance = speed × time
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The distance relation is used to find the distance on the first line of the table. The problem statement tells you all of the distances are the same.
The speed relation is used to find the speed on the remaining lines of the table. For the average speed, the total distance and total time are used in the computation.
The average speed is 25 km/h.