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  • If a boat goes 7km upstream in 42 min & speed of stream is 3kmph. Then what is the speed of boat in still water?

 

If a boat goes 7km upstream in 42 min & speed of stream is 3kmph. Then what is the speed of boat in still water?

 

  • Option 1)

     

    4.2 kmph

     

  • Option 2)

     

    9 kmph

     

  • Option 3)

     

    13 kmph

     

  • Option 4)

     

    3.5 kmph

     

  • Option 5)

     

    21 kmph

     

Answers (1)

best_answer

Upstream Speed = 7 x 60/42 => 10 Kmph

Speed of Stream = 3 Kmph

Speed Of Boat = 10 + 3 => 13 Kmph

Posted by

rishi.raj

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