Question: A man rows to a place 40 km distant and back in a total of 18 hours. He finds that he can row 5

A man rows to a place 40 km distant and back in

A man rows to a place 40 km distant and back in a total of 18 hours. He finds that he can row 5 km with the stream in the same time as 4 km against the stream. What is the speed of boat in still water? A) 4.5 km/hr B) 8 km/hr C) 5.5 km/hr D) 2 km/hr E) None of these

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