Two trains leave from two cities with a distance of 600km at the same time. One takes 10 hours to complete the whole journey, and the other takes 8 hours to complete the whole journey. How many hours do they meet? Arithmetic solution,

Two trains leave from two cities with a distance of 600km at the same time. One takes 10 hours to complete the whole journey, and the other takes 8 hours to complete the whole journey. How many hours do they meet? Arithmetic solution,

600 / (600 / 10 + 600 / 8) = 40 / 9 hours = 4.444 hours

Two trains leave from the two cities at the same time. It takes 10 hours for one train to complete the whole journey, and it takes 8 hours for the other train to complete the whole journey. After a few hours, the two trains meet?

A: after 409 hours, the two cars meet

The two trains leave from two places at the same time. Two fifths of the distance between a and B meet each other,

When we met, B made the whole journey
2 out of 1-5 = 3 out of 5
When did you meet
3 / 5 △ 1 / 10 = 6 (hours)
When we met, a went
80 × 6 = 480 (km)
The distance between the two places
480 △ 2 / 5 = 1200 (km)

The distance between the two places is 944 km. Train a and B leave from the two places respectively. Train a travels 110 km per hour. After 4 hours, the two trains meet,
How many kilometers per hour have you traveled?
Use the equation to solve

Set car B to travel x kilometers per hour
4*110+4x=944
440+4x=944
4x=504
x=126
Car B travels 126 kilometers per hour