# Physics

The current in a river is 1.0 meters/second. Britney swims 300 meters against the current. If she normally swims with a speed of
2.0 meters/second in still water, how long does it take her to complete the trip?

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1. Upstream=300 metres/(2-1)=300 s
Downstream=300/(2+1)=100 s

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2. 100 is the wrong answer

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posted by mystery
3. 100

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