Answer: 22 kilometers
Step-by-step explanation:
Because the train traveled north 22 kilometers and when given the information that the train returned to its original position we know that the train also traveled north the same distance.
The train traveled 22 kilometers in the southward direction.
The train travelled east by 50 km and the North by 22 km. It then travelled west by 50 km once more.
Because it travelled west by the same number of kilometers that it travelled east, they cancel each other out and mean that the train is now exactly 22 kilometers north of its original location.
In order to get back to its original location therefore, it simply needs to travel south by 22 km in order to cancel out the 22 km north it had travelled.
In conclusion, the train travelled 22 km south to get back to its original location.
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