Answer:
The total distance should be 10 miles
Explanation:
As we see in the figure there is a scale given below the graph. A scale actually shows the virtual distance on paper and a small areas can represent a large area. Since the scale shows that 1 inch on the paper shows 2.5 miles in the real distance so 4 inches in the map will show 4 x 2.5 which comes out to be 10.