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A man rowed against a stream flowing 1 (1)/(2) km/hr to a certain point and then turned back, stopping 2 km, short of the place where he originally started. If the whole time occupied in rowing be 2 hr 10 min and his uniform speed in still water be 4(1)/(2)km/hr. Find the distance the man went up the stream. |
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Answer» 7 km |
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