Answer:
or 50 miles per hour
Explanation:
Let the speed of a train be x miles per hour
Total distance is given to be traveled by train= 250 miles
Total time taken to cover the distance= 5 hours
We have to find the expression to find the speed of a train
As we know Speed =

Hence, Speed of a train =
miles per hour
Speed of a train = 50 miles per hour.
Hence, the correct answer is
or 50 miles per hour