Answer:
200 - 65h = 4
Explanation:
let h be the hours taken by the train to reach the railroad road marker point.
average speed of train = 65 miles/hr
total time taken = 65h
total miles = 200
equation to find the time it will take for the distance between the train and the railroad marker to be 4 miles apart will be,
200 - 65h = 4