Two trains departed simultaneously towards each other from the stations, the distance between which is 520 km.

Two trains departed simultaneously towards each other from the stations, the distance between which is 520 km. one train passed 250 km before the meeting at a speed of 50 km / h. how fast the second train was going.

Let’s calculate how long it takes for the first train to meet the second, for which we divide the distance traveled by the speed with which it moved:
250: 50 = 5 (h.);
Let’s calculate the distance traveled by the second train, for which we subtract the distance that the first train traveled from the distance between stations:
520 – 250 = 270 (km.);
Let’s calculate the speed of the second train, for which we divide the distance traveled by the time spent:
270: 5 = 54 (km / h).
Answer: the speed of the second train is 54 km / h.