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The Brainliest Answer!
  • Brainly User
2014-02-28T18:28:20+05:30
Let the time taken for downstream be T/2 and let the time taken for upstream be T
v-velocity in still water,u-velocity of stream
therefore (v-u)=(v+u)/2
2v-2u=v+u
v=3u
therfore v/u=3/1

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  • Brainly User
2014-02-28T19:14:01+05:30