Two trains, one starting at Point A and the other at Point B, travel toward one another.

Train #1 travels at 140km/h towards Point B, while Train #2 travels at 120km/h towards Point A.

If the trains begin at the same time, Point A and Point B are 285km apart, how far from Point A will the trains pass each other.

I'm not sure what to find here in order to answer the probelm, any help please