Triathlete Dan runs along a 2-mile stretch of river and then swims back along the same route.
Triathlete Dan runs along a 2-mile stretch of river and then swims back along the same route. If Dan runs at a rate of 10 miles per hour and swims at a rate of 5 miles per hour, what is his average rate for the entire trip in miles per minute?
Answer/Solution
1/9
Steps/Work
Dan travels 4 miles round trip.
Running part: (2/10 = 1/5*60 = 12 minutes)
Swimming Part: (2/5 = 2/5*60 = 24 minutes)
4 miles in (12+24) minutes
4/36 = 1/9 mile per minute
Answer: 1/9 mile per minute
Running part: (2/10 = 1/5*60 = 12 minutes)
Swimming Part: (2/5 = 2/5*60 = 24 minutes)
4 miles in (12+24) minutes
4/36 = 1/9 mile per minute
Answer: 1/9 mile per minute