A boat can cover 10 km upstream and 5 km downstream in 6 hrs. If the speed of the stream is 1.5 km/hr,find the speed of boat in still water.
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Step-by-step explanation:
downstream=speed of still water+speed of stream
6/5=1.5+speed of still water
1.2-1.5=speed of still water=0.3km/hr
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