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Speed of a boat in standing water is 14 kmph and the speed of the stream is 1.2 kmph. A man rows to

 

Speed of a boat in standing water is 14 kmph and the speed of the stream is 1.2 kmph. A man rows to a place at a distance of 4864 km and comes back to the starting point. The total time taken by him is:

 

  • Option 1)

     

    250 hours

     

  • Option 2)

     

    350 hours

     

  • Option 3)

     

    1400 hours

     

  • Option 4)

     

    1010 hours

     

  • Option 5)

     

    700 hours

     

Answers (1)
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Upstream Speed = 14 - 1.2 => 12.8 Km/hr

Downstream Speed = 14 + 1.2 => 15.2 Km/hr

Total time taken = 4864/12.8 + 4864/15.2

                           = 700 Hours

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