A. The distance between the two places is 360 km. Car a starts from place a and goes to place B for 72 km per hour. 25 minutes after car a starts, car B starts from place B and goes to place a for 48 km per hour. After the two cars meet, they continue to drive in the same direction until their respective destination (1) How long did car B travel from departure to meeting? (2) When the distance between car a and car B is 10 km, how long does car B travel?

A. The distance between the two places is 360 km. Car a starts from place a and goes to place B for 72 km per hour. 25 minutes after car a starts, car B starts from place B and goes to place a for 48 km per hour. After the two cars meet, they continue to drive in the same direction until their respective destination (1) How long did car B travel from departure to meeting? (2) When the distance between car a and car B is 10 km, how long does car B travel?

1.(360-72*25/60)/(72+48)=2.75h
2.(360-72*25/60-10)/(72+48)=8/3h

The distance between a and B is 360 kilometers. Car a starts from a and goes to B, 72 meters per hour. 25 minutes after car a starts, car B starts from B and goes to a
After the two cars met, they continued to drive at the same speed and direction. Then, when the two cars were 100000 meters apart, how many hours did car a start from?

If vehicle a has been running for X hours since its departure, there will be
72x+48(x-25/60)=360+100
The solution is x = 4

A. The distance between the two places is 360km. Car a starts from a and goes to B for 72km per hour. 25 minutes after car a starts, car B starts from B and goes to a for 48km per hour. After the two cars meet, they continue to drive at the same speed and direction. How many hours did car a drive when the distance between the two cars is 100km?

A. The distance between two places B is 360 km. The speed of car a from place a to place B is 72 km / h. 25 minutes after car a starts, car B from place B to place a is 48 km / h. how long does it take for the two cars to be 120 km / h apart

① The first meeting is 120 kilometers
25 points = 0.75
（360-120-0.75×72）÷（72+48）
=（360-120-54）÷120
=186÷120
=55 hours
② The second meeting
（360+120-0.75×72）÷（72+48）
=（480-54）÷120
=426÷120
=3.55 hours