A man can row a boat at 10 kmph in still water. If  the speed of the stream is 6 kmph the time taken to a row distance of 80 km down the stream is?

 

  • Option 1)

     

    4 hours

     

  • Option 2)

     

    5 hours

     

  • Option 3)

     

    10 hours

     

  • Option 4)

     

    20 hours

     

  • Option 5)

     

    8 hours

     

Answers (1)

Downstream Speed = 10+6 => 16

Time taken to cover 80 Km = 80/16 => 5 hours

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