Math, asked by prince487, 1 year ago

Please give me answer

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Answered by CharlieTomCruise9
1
Let the speed of the stream be x km/hr

Speed downstream = (15+x) km/hr
Speed upstream = (15-x) km/hr

30/(15+x) + 30/(15+x) =9/2
900/(225-x^2) = 9/2
9x^2 = 225
x^2 = 25
x = 5 km/hr

So your answer is 5 km/hr

Hope it helps
Thanks!!

CharlieTomCruise9: If it helped plz mark it the brainliest
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