A boat whose speed in still water is 9 kmph, goes 12 km downstream and comes back in 3 hrs. Find the speed of the stream? | Examsbook

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A boat whose speed in still water is 9 kmph, goes 12 km downstream and comes back in 3 hrs. Find the speed of the stream?

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Ashu administrators Reply Quote

Answer : 2 3 kmph Explanation : Answer: B) 3 kmph Explanation: Let the speed of the stream = x kmph From the given data, 129 x 129-x=3 hrs3x2 = 27 =

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