Let’s call the distance from city A to the point where the trains meet “x”. Then, the distance from city B to the point where the trains meet is 5519 - x.

We can use the formula:

distance = rate x time

to set up two equations, one for each train. Let’s use “t” to represent the time it takes for the trains to meet.

For the train starting in city A:

distance = rate x time x = 181t

For the train starting in city B:

distance = rate x time 5519 - x = 190t x = 5519 - 190t

Now we can set these two equations equal to each other, since they both represent the distance to the point where the trains meet:

181t = 5519 - 190t

Simplifying and solving for t:

371t = 5519 t = 14.87 hours

Now we can plug this value of t into either equation to find x:

x = 181t x = 181(14.87) x = 2698.47 km

Therefore, the trains will pass each other 2698.47 km from city A.