Two trains left 2 cities at the same time, the speed of one being 60 km / h, and the speed of the other 42 km / h

| February 7, 2021 | education

Two trains left 2 cities at the same time, the speed of one being 60 km / h, and the speed of the other 42 km / h. The first walked 162 km more before the meeting than the second. What is the distance between cities?

1.Let’s find the difference in the speeds of the two trains by subtracting the speed of the second from the speed of the first train.

60 – 42 = 18 km / h

2. Let’s calculate how long the trains were moving before the meeting, dividing the difference on the way by the difference in speed.

162/18 = 9 hours

3. Since the trains are moving towards each other, we find the speed of the convergence of the trains by adding their speeds.

60 + 42 = 102 km / h speed of the convergence of trains.

4. Find the distance between cities by multiplying the speed of convergence of trains by the travel time.

102 * 9 = 918 km

Answer: The distance between cities is 918 km.



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