From two stations, two trains simultaneously set off towards each other. The first train went at a speed

From two stations, two trains simultaneously set off towards each other. The first train went at a speed of 42 (3/5) km / h, and the second – at a speed 1 (2/3) times greater. Find the distance between stations if the trains meet in 1 (7/8) hours after the start of movement.

Decision.
Distance between stations (42 (3/5) + 42 (3/5) * 1 (2/3)) * 1 (7/8) = 42 (3/5) * (1 + 1 (2/3) * 1 (7/8) = 42 (3/5) * 2 (2/3) * 1 (7/8) = 213/5 * 8/3 * 15/8 = 213 km.
Answer: 213 km