A and B are going from AB to ab at the same time. After arriving at each other's departure place, they immediately return and meet for the second time at a distance of 60 km from A. the speed ratio of a and B is 2:3. Find out the distance between AB and a?

The distance between the two places of AB is x kilometers. From the meaning of the title, you can get: (2x-60): (2x-60): (x + 60) (x + 60) (x + 60) (x + 60) = 2:3, and & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; the distance between the two places of AB is x kilometers. From the meaning of the title, you can get: (2x-60: (2x-60-60): (x + 60) (x + 60) (x + 60) = 2:2:2:3:3, 3, 3-3, 3, and & nbsp; &, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & & nbsp; & & 6x-180-2x, & nbsp; 120=6X-2X-180， 120+180=4X-180+180， 300=4X， &A: the distance between a and B is 75KM

A and B are going from AB to ab at the same time. After arriving at each other's departure place, they immediately return and meet for the second time at a distance of 60 km from A. the speed ratio of a and B is 2:3. Find out the distance between AB and a?

Let the distance between a and B be x kilometers. From the meaning of the question, we can get: (2x-60): (x + 60) = 2:3, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 2 (x + 60) = 3 (2x-60), & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 2x + 120 = 6x-180, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 2X+120-2X=6X-180-2X， 120=6X-2X-180， 120+180=4X-180+180， 300=4X， &A: the distance between a and B is 75KM

A and B are going from AB to ab at the same time. After arriving at each other's departure place, they immediately return and meet for the second time at a distance of 60 km from A. the speed ratio of a and B is 2:3. Find out the distance between AB and a?

Party A and Party B face each other. Once they meet 60 meters away from a, advance at the original speed, return to each other's starting place, and then meet 20 meters away from a for the second time?
Party A and Party B face each other from a and B. for the first time, they meet 60 meters away from a and continue to advance at the original speed. They return to each other's starting place. For the second time, they meet 20 meters away from A. how many kilometers is the distance between two places?

100 km
A traveled 60 kilometers in the first encounter and three distances in the second encounter. Therefore, a traveled 60 * 3 = 180 kilometers in the second encounter. At this time, a was 20 kilometers away from A. then, plus 20 kilometers, a traveled two distances, so (180 + 20) / 2 = 100 kilometers
（60*3+20）/2=100

A and B are going from AB to ab at the same time. After arriving at each other's departure place, they immediately return and meet for the second time at a distance of 60 km from A. the speed ratio of a and B is 2:3. Find out the distance between AB and a?