A motor boat whose speed is 18km/h in still water takes 1 hour more to go 24km upstream than to return downstream to the same spot. Find the speed of the stream. Experts please help me! I'm not understanding the upstream downstream concept!!
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https://www.meritnation.com/ask-answer/question/a-motor-boat-whose-speed-is-18km-h-in-still-water-takes-1-ho/quadratic-equations/6809549