3. A boat takes 144 minutes less to travel 54 km downstream than to travel the same distance upstream if the speed of the boat in still water is 14 km/hr. What is the speed of the stream (in km/hr)
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A boat takes 144 minutes less to travel 54 km downstream than to travel the same distance upstream if the speed of the boat in still water is 14 km/hr. What is the speed of the stream (in km/hr)
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