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Q: A person can row 8 1/2 km an hour in still water and he finds that it takes him twice as long to row up as to row down the river. The speed of the stream ?

  • 1
    1.78 kmph
  • 2
    2.35 kmph
  • 3
    2.83 kmph
  • 4
    3.15 kmph
  • Show Answer
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Answer : 3. "2.83 kmph"
Explanation :

Answer: C) 2.83 kmph Explanation: Given speed of the person = 8 1/2 = 17/2 kmphLet the speed of the stream = x kmphspeed of upstream = 17/2 - xspeed of downstream = 17/2 + xBut given that,2(17/2 - x) = 17/2 + x=> 3x = 17/2=> x = 2.83 kmph.

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