the teacher said to a student:"when i am in your age,you are only2,and when you are in my age,i'm41."Then how old are they now?

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the teacher said to a student:

the teacher said to a student:"when i am in your age,you are only2,and when you are in my age,i'm41."Then how old are they now?
the teacher said to a student:"when i am in your age,you are only2
,and when you are in my age,i'm41."Then how old are they now?

the teacher said to a student:"when i am in your age,you are only2,and when you are in my age,i'm41."Then how old are they now?
teacher is 28 years old
student is 15 years old

解设老师的年纪是Y ,学生是X,且Y>X,得:X—2=Y—X,41—Y=Y—X,解出Y=28,X=15 解题思路;抓住老师和学生的年纪差始终不变。

啊实打实的