Two boats on opposite banks of a river start moving towards each other. They first pass each other 1400 meters from one bank. Th
ey each continue to the opposite bank, immediately turn around and start back to the other bank. When they pass each other a second time, they are 600 meters from the other bank. We assume that each boat travels at a constant speed all along the journey. Find the width of the river?
Assuming that the river doesn not move if they kept a constand speed then they passes the problem doesn't say how fast they were moving, but we can see that 1 boat is faster so
first pass 1400 meters from 1 bank if they turn around they are 600 meters from the other bank since they kept constant speed, they passed in the same place so distance from bank1 to markx=1400 distance from bank2 to markx=600 distance from bank1 to bank2=600+1400 1400+600=total distance=2000 m
