1, meeting distance = speed x meeting time.

2, meet time = meet distance ÷ speed and

3. Speed sum = meeting distance ÷ meeting time

4. Meeting distance = A distance +B distance.

5. the speed of a = meeting distance ÷ meeting time-the speed of b.

6. the distance of a = the distance of meeting-the distance of b.

Second, the issue of the meeting.

Two objects start from two places and walk in opposite directions. After some time, they are bound to meet on the road. This kind of problem is called meeting problem. The problem of meeting is to study the relationship between speed, time and distance. It is different from the general travel problem in that it is not the movement of an object, so the speed it studies includes the speed of two objects, that is, the sum of speeds.

Extended data:

Classification of travel problems

1, follow the question

The chasing and meeting problems involved in the movement of two objects on the same straight line or closed figure are usually classified as chasing problems. This kind of problem often appears in exams, and it is a big kind of problem in travel.

Step 2 encounter problems

When many objects are close to each other, we usually find the time of meeting or the whole journey.

3. The problem of running water.

The boat itself is dynamic, even if the water doesn't flow, it has its own speed, but in flowing water, it is either pushed by running water or by running water, so that the speed of the boat changes in running water, while bamboo rafts and others have no speed, and its speed is the speed of water.

4. Train timetable problem

The length of the train actually has its own length, which is the characteristic of the train travel problem.

5, the clock problem

The clock problem can be regarded as a special problem that two people catch up or meet in a circular orbit, but the two "people" here are the minute hand and the hour hand of the clock respectively. However, in many clock problems, we often encounter all kinds of "strange clocks" or "broken clocks", whose hour hand and minute hand move at different angles from conventional clocks, which requires us to learn to analyze different problems independently.