While John is traveling along a straight interstate

Question

highway, he notices that the mile marker
reads 256 km. John travels until he reaches
the 144 km marker and then retraces his path
to the 173 km marker.
What is John’s resultant displacement from
the 256 km marker?
How far has he traveled?

Answer 1

distance traveled=(256-144)+(173-144))
displacement=(256-173)