SOLUTION: A crew of 8 can row 20 kilometers/hour in still water. The crew rows upstream and then returns to its starting point in 15 minutes. If the river is flowing at 2 kilometers/hour,
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Question 353950: A crew of 8 can row 20 kilometers/hour in still water. The crew rows upstream and then returns to its starting point in 15 minutes. If the river is flowing at 2 kilometers/hour, how far upstream did the crew row?
Please be detailed in your answer, Thank You!
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
time = distance / rate ___ the times (up and down) sum to 1/4 hr
[d / (20 - 2)] + [d / (20 + 2)] = 1/4
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