Answer:
Displacement of john will be 74 km
Explanation:
We have given that firstly john notice that mile marker reads 241 km
Then he go to 134 km km marker and then return back to 167 km marker point
We know that when we deal with displacement then we consider only initial and final point we don't consider total path traveled
Here initial point is 241 km marker and final point is 167 km marker
So displacement will be 241 - 167 = 74 km