Answer :
The train's average velocity is approximately 20.40 km/h.
To find the average velocity of the train, we need to divide the total distance traveled by the total time taken.
The total distance traveled by the train is the sum of the distances traveled in each segment: 101.2 km (east) + 225.9 km (west) + 144.2 km (east) = 471.3 km.
The total time taken for the trip is given as 23.11 hours.
Average velocity is defined as the total distance divided by the total time:
Average velocity = Total distance / Total time
Plugging in the values:
Average velocity = 471.3 km / 23.11 hours
Calculating the result:
Average velocity ≈ 20.40 km/h
Therefore, the train's average velocity is approximately 20.40 km/h.
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