From two stations, the distance between which is 400 km. At the same time, two trains left to meet each other
From two stations, the distance between which is 400 km. At the same time, two trains left to meet each other, how many hours after the start of the movement they will meet, if the speed of one is 69 km / h, and the second is 56 km / h.
1. Let’s determine the speed at which the first and second trains approach each other, if the first train moves at a speed of 69 kilometers per hour, and the second train moves at a speed of 56 kilometers per hour:
69 + 56 = 125 (km / h).
2. Find out how many hours after the start of the movement the first and second trains will meet, if the distance between the stations is 400 kilometers, and the speed of their convergence is 125 kilometers per hour:
400: 125 = 3.2 (h).
Answer: the first and second trains will meet in 3.2 hours after the start of movement.