In the question it is given that the length of the blue lake trail is 11 3/8 miles. In the question it is also given that Gemma has hiked for a total time of 3 hours and each hour she has hiked 2 1/2 miles. Now coming to solving the problem we get: Total length of blue lake trail = 11 3/8 miles = 91/8 miles Distance hiked by Gemma in 1 hour = 2 1/2 miles = 5/2 miles Then the total distance hiked by Gemma in 3 hours = (5/2) * 3 = 15/2 miles The distance left to cover the full trail = (91/8) - (15/2) miles = (91 - 60)/8 miles = 31/8 miles = 3 7/8 miles. So Gemma is 31/8 miles or 3 7/8 miles from the end of the trail.
