A boat takes 6 hours to travel 8 km upstream and 32 km downstream, and it takes 7 hours to travel 20 km upstream and 16 km downstream. Find the speed of the boat in still water and the stream.
Solution. Let the speed of the boat in still water be x km/hr and the speed of the stream be y km/hr. ∴ Speed of the boat upstream = (x – y) km/hrand speed of the boat downstream = (x + y) km/hr We know that, According to first condition, ………………. (i)According to second condition, ………………. (ii) Let …