SOLUTION: A butterfly flew 4 miles with the wind in 1 hour. It returned against the same wind in 1hour and 15 minutes. Find the speed of the bird in still air and the wind speed.
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Question 723449: A butterfly flew 4 miles with the wind in 1 hour. It returned against the same wind in 1hour and 15 minutes. Find the speed of the bird in still air and the wind speed. Answer by richwmiller(17219) (Show Source):
