There are two stations a and B 108 km apart on a main highway. At 16 o'clock on a certain day, a and B start from a and B stations at the same time and run in opposite directions. It is known that the speed of car a is 45 km / h and that of car B is 36 km / h, then the time when the two cars meet is______ ．

There are two stations a and B 108 km apart on a main highway. At 16 o'clock on a certain day, a and B start from a and B stations at the same time and run in opposite directions. It is known that the speed of car a is 45 km / h and that of car B is 36 km / h, then the time when the two cars meet is______ ．

Suppose that it takes x hours for two cars to meet, then 45x + 36x = 108, the solution is x = 113, so the time for two cars to meet is 16 + 113 = 1713, that is 17:20

The distance between the two stations on a highway is 216 km. At 16 o'clock on a certain day, two cars of a and B start from the two stations at the same time and travel in opposite directions. It is known that the speed of car a is 90 km per hour and that of car B is 72 km per hour. When do the two cars meet

（90+72）*（x-16）=216
x=17+1/3
The two cars met at 17:20

On the same highway, the distance between a and B stations is 108 ㎞ at 16:00 on April 20, AB two cars started from a and B stations at the same time and went opposite each other
It is known that the speed of car a is 45 ㎞ per hour, and that of car B is 36 ㎞ per hour

108 ／ (45 + 36) = 108 ／ 81 = 4 / 3 hours = 1 hour 20 minutes

The total length of bus No.5 is 12 km, and the distance between two adjacent stops is 1 km. How many stops are there?

12 + 1 = 12 + 1 = 13 A: there are 13 stations