A motorboat whose speed is 9km/hr in still water, goes 12km downstream and comes back in a total time of 3hrs. Find the speed of the stream.
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Speed of boat = 9km/hr.
Speed of stream = x km/hr.
Distance travelled at one time = 12 km
Total time taken = 3 hrs.
Speed of boat = 9km/hr.
Speed of stream = x km/hr.
Distance travelled at one time = 12 km
Total time taken = 3 hrs.
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