A boat goes 30km upstream and 28km downstream in 10 hours. In 7 hours, it
can go 21 km upstream and 21 km downstream then to return downstream to
the same spot. Find the speed of stream and that of the boat in still water and
speed of the stream.
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Answers
Answer:
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Answer:
sorry but i don`t know the answer
but pls mark brainliest
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