A boat takes 19 hours for travelling downstream from point A to point B and coming back to a point C midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B ?	Choose the correct option: A) 160 km B) 180 km C) 200 km D) 220 km E) 240 km
Down Stream Speed :(14+4)km/hr =18 km/hr   Up Stream Speed:(14-4)km/hr=10km/hr   (x/18)+(x/2/20)=19   x=180km   ANSWER:180 km
<result>B</result>
A boat takes 19 hours for travelling downstream from point A to point B and coming back to a point C midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B ?