Answer:
450m
Step-by-step explanation:
The difference in elevation between the two points is 450m
We can derive it using the expression below:
Difference in elevation = Elevation at Z - Elevation at X
The contour interval = 50m
Elevation at Z = 2050m
Elevation at X = 1600m
Difference in elevation = 2050m - 1600m = 450m