Two trains left the two cities at the same time towards each other. The speed of the first train is 65 km / h

Two trains left the two cities at the same time towards each other. The speed of the first train is 65 km / h, the speed of the second is 70 km / h, it covered 350 km before the meeting. What way did the first train go before the meeting?

1) Divide the distance that the second train traveled before the meeting by the speed of its movement, thereby finding out how many hours it was on the way:
350: 70 = 5 hours.
2) Since the trains left towards each other at the same time, the first train was on the way for 5 hours.
By multiplying the speed of his movement by time, we determine the distance that he traveled:
65 * 5 = 325 km.
Answer: the first train passed 325 km before the meeting.