A motor boat whose speed in still water is 15 km h goes 30 km downstream and comes back in a total 4 hrs 30 mins. Determine the speed of the stream. code example

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A motor boat whose speed in still water is 15 km h goes 30 km downstream and comes back in a total 4 hrs 30 mins. Determine the speed of the stream. code example

Example: A boat covers a certain distance downstream in 1 hour, while it comes back in 1 hour 40 min. If the speed of the stream be 5 kmph, what is the speed of the boat in still water?

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