A and B both walk from ab at the same time. A walks 100 meters per minute. The speed of a and B is 5:4. After 5 minutes, they walk 3 / 5 of the whole distance, which is longer than ab

A and B both walk from ab at the same time. A walks 100 meters per minute. The speed of a and B is 5:4. After 5 minutes, they walk 3 / 5 of the whole distance, which is longer than ab

Because a walks 100 meters per minute, the speed ratio of a to B is 5:4
So I have walked 80 meters per minute
Because five minutes later they walked three fifths of the way
So let AB length x m (100 + 80) × 5 = 3x / 5
x=1500

Party A and Party B walk from ab at the same time. The speed ratio between Party A and Party B is 5:4 for 100 meters per minute. How far is the distance between Party A and Party B

B the speed is
100 △ 5 × 4 = 80 m / min
Five minutes
(100 + 80) × 5 = 900m
The distance between a and B
900 △ 3 / 5 = 1500m

A. B is 1000 meters apart. A and B set out from a and B at the same time and walk back and forth between a and B. if the first meeting is 100 meters away from the midpoint of a and B, how far is the second meeting place from the first meeting place?

The first time: Party A and Party B walk a full distance of 1000 meters. Suppose that Party A walks 1000 ／ 2-100 = 400 meters. The second time: Party A and Party B walk three full distances, in which Party A walks 400 × 3 = 1200 meters. At this time, the distance from a 1000 - (1200-1000) = 800 meters. The distance from the first meeting point: 800-400 = 400 meters. A: the second meeting place is 400 meters away from the first meeting place

Party A and Party B walk from a and B at the same time. Party A travels 100 meters per minute and Party B 120 meters per minute. After 12.5 minutes, they are 150 meters apart. How many meters are there between a and B? (analysis of various situations)

① There are 150 meters between them to meet (100 + 120) × 12.5 + 150 = 220 × 12.5 + 150 = 2750 + 150 = 2900 (meters); ② there are 150 meters between them after meeting, (100 + 120) × 12.5-150 = 220 × 12.5-150 = 2750-150 = 2600 (meters) a: the distance between a and B is 2900 meters or 2600 meters