The process is as follows:

1, at 1 minute, Miss Wang informed 1 student;

2. In the second minute, Miss Wang and the notified 1 student each notified 1 student, that is, 1+2=3 students;

3. In the third minute, Miss Wang and the three students who have already notified each notified 1 student, that is, 3+4=7 students;

4. In the 4th minute, Mr. Wang and the seven students who have already notified each other notified 1 student, that is, 7+8= 15 students;

5. In the 5th minute, Miss Wang and the notified 15 students were notified 1 student, that is, 15+ 16=3 1 student was notified;

6. At the 6th minute, Miss Wang and the notified 365,438+0 students each notified 65,438+0 students, that is, 365,438+0+32 = 63 students were notified (the total number of students was only 50, that is, the notification was all in place).

Question 2: answer: point m or r.

(1) Suppose the origin is m, N= 1, P=2, R=3(MN=NP=PR= 1). The point corresponding to the number A is between M and N, and the point corresponding to the number B is between P and R ... and then 0.

⑵ Suppose the origin is n, M=- 1, P= 1, R=2(MN=NP=PR= 1). The point corresponding to the number A is between M and N, and the point corresponding to the number B is between P and R. Then-1

(3) Suppose the origin is p, M=-2, N=- 1, R= 1(MN=NP=PR= 1). The point corresponding to the number a is between m and n, and the point corresponding to the number b is between p and R. So -2

(4) Suppose the origin is R, M=-3, N=-2, P=- 1(MN=NP=PR= 1), the point corresponding to number A is between m and n, and the point corresponding to number B is between p and r, then -3.

So the origin is point m or point r.