{ A swimmer can swim in still water at }4km/h . If a }}{ river is flowing at }2km/h , then how much time will }}{ he takes to swim }2km upstream and then back to }} the starting point?

{ A swimmer can swim in still water at }4km/h . If a }}{ river is flow

1.	{ A swimmer can swim in still water at }4km/h . If a }}{ river is flowing at }2km/h , then how much time will }}{ he takes to swim }2km upstream and then back to }} the starting point?
Answer» { A swimmer can swim in still water at }4km/h . If a }}{ river is flowing at }2km/h , then how much time will }}{ he takes to swim }2km upstream and then back to }} the starting point?

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{ A swimmer can swim in still water at }4km/h . If a }}{ river is flowing at }2km/h , then how much time will }}{ he takes to swim }2km upstream and then back to }} the starting point?

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