A man rows downstream at 12 km/h and upstream at 6 km/h. What is his speed in still water if the speed of the stream is 3 km/h? (A) 9 km/h (B) 3 km/h (C) 6 km/h (D) 15 km/h
A man rows downstream at 12 km/h and upstream at 6 km/h.…
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A man rows downstream at 12 km/h and upstream at 6 km/h. What is his speed in still water if the speed of the stream is 3 km/h? (A) 9 km/h (B) 3 km/h (C) 6 km/h (D) 15 km/h
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