Clint and Jim rode their bicycles to Mill Park at an average of 8 mi/hr. It took then 1 hr longer to return home riding at an average of 7 mi/hr on a route that was 4 mi longer than their route. How long were they riding their bicycles? How man miles did they ride each way?
Let the distance to the Park = D
Let the time it took them to cycle to the Park = T
8T = D.............................(1)
D + 4 =7[T+1]..................(2), solve for D, T
T = 3 - hours - time it took them to get to the Park.
3 + 1 = 4 - hours - time it took them to return home.
3 + 4 = 7 - hours they spent cycling.
D = 24 - miles - distance to the Park.
24 + 4 = 28 miles - distance they cycled home.
24 + 28 =52 miles - total distance they cycled to the Park and back home.
