It took a crew 80 min to row 3 km upstream and back again. If the rate of flow of the stream was 3km/h, what was the rowing rate of the crew?
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Originally Posted by andrewpark2 It took a crew 80 min to row 3 km upstream and back again. If the rate of flow of the stream was 3km/h, what was the rowing rate of the crew? Total distance is 3 km (1.5 km each way) Total time is 4/3 hr (80 min) Rate of steam is 3 km/hr rate of boat downstream = b + 3 rate of boat upstream = b - 3 Does that sound reasonable?
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