The distance between a and B stations is 216KM. At 16 o'clock on a certain day, a and B vehicles start from a and B stations and run in opposite directions It is known that the speed of car a is 90m / h and that of car B is 72km / h. When did the two cars meet

The distance between a and B stations is 216KM. At 16 o'clock on a certain day, a and B vehicles start from a and B stations and run in opposite directions It is known that the speed of car a is 90m / h and that of car B is 72km / h. When did the two cars meet

The time of meeting is 216 / (90 + 72) = 1 and 1 / 3 (hours) = 1 hour and 20 minutes
Since the departure time is 16 o'clock, the meeting time is 17:20

On a certain highway, the distance between the two stations a and B is 216KM. At 16 o'clock on a certain day, two cars a and B start from the two stations a and B and go opposite each other. It is known that the speed of a is 90km
h. B: the speed is 72kmh. When will we meet

On a certain highway, there are two stations a and B, 108km apart,
When the speed of car a is 45km / h and that of car B is 36km / h, when will the two cars meet?
We need to do it with equations

Set the travel time to t hours
Because it is opposite, so Party A and Party B complete the 108km journey together
List the equation: 45t + 36t = 108
The solution is t = 4 / 3
That is to say, Party A and Party B met after driving for 1 hour and 20 minutes. As they started at 8 am, Party A and Party B met at 9:20 am
[note] "opposite" and "in the same direction"
In opposite direction and in the same direction, two moving objects are moving in the same direction. The difference is: in opposite direction, two objects are moving face to face; in the same direction, two objects are moving side by side in the same direction