A boat takes two hours to travel 8 km down and 8 km up the river when the water is still
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Answer:
With water velocity of 4kmph, the time taken for going upstream of 8km and coming back is. Answer: Speed of boat in still water = 16/2 = 8 km/hr. time for travelling 8 km downstream = 8/(8+4) = (2/3) hr = 40 min.
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Step-by-step explanation:
the time taken in 40 minutes
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