tfontalvop8129d tfontalvop8129d

01-05-2018
Mathematics

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A boat travels 9 km upstream and 9 km back. The time for the round trip is 5 hours. The speed of the stream is 2km/hr. What is the speed of the boat in still water?

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santanab021435 santanab021435

08-05-2018

the speed of the boat is 4.28 km/h i think

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