At the same time, the two cars are facing each other from station a and station B. for the first time, they meet 40 kilometers away from station A. then they go on to the station and return to meet 20 kilometers away from station B. find the distance

At the same time, the two cars are facing each other from station a and station B. for the first time, they meet 40 kilometers away from station A. then they go on to the station and return to meet 20 kilometers away from station B. find the distance

The first time we met, the two cars made a total journey, and the first car made 40 kilometers
The second time we met, the two cars made a total of three journeys, and a should go: 40 * 3 = 120 km
In fact, a did a whole journey plus 20 kilometers
So the whole distance is: 120-20 = 100 km

A. Two cars B start from station a and station B and run in opposite directions. They meet for the first time. They are 32 kilometers away from station A. after meeting, they continue to move forward and reach station a and station B respectively
After the station, immediately return along the original road, the second meeting is 64 km away from the station a. Find the distance between the two places

Party A and Party B met for the first time and had a whole journey,
Among them, a line of 32 kilometers
Party A and Party B met each other for the second time, and had a total of three whole journey
Among them, a line of two full minus 64 kilometers
Party A and Party B go through three whole courses, which takes three times as long as one whole course
A should have traveled 32 * 3 = 96 km
So if you subtract 64 kilometers from two whole distances, that's 96 kilometers
AB distance: (96 + 64) / 2 = 80 km