Answer:
2.1 miles
Explanation:
Given that :
Total distance = 13.1 miles
Distance between each water stop = 2.75 miles
Distance between last water stop and end of the race
We need to find the maximum number of water stops :
Total miles / distance between water stops
13.1 / 2.75
= 4.763
Maximum number of water stops = 4
Distance to last water stop = 4 * 2.75 = 11 miles
Hence, distance between last water stop and end of Race :
Total miles - distance to last water stop
13.1 miles - 11 miles
= 2.1 miles