A boat takes 1 hour 30 minutes to sail 30 km down the stream while it takes 3 hours to return to the starting point. Find the speed of the boat in still water and the speed of the stream. The speed of the boat in still water is km/hr. The speed of the stream is km/hr.
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The boat covers the same distance in 4 hours while running downstream. E. km/hr = 8 km/hr. km/hr = 12 km/hr.
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