The head teacher awarded 36 pens and 40 exercise books to the "three good students" on average. As a result, there was one more pen and two less exercise books. How many "three good students" are there?
班主任把36支钢笔和40本练习本平均奖给"三好学生"，结果钢笔多了1支，练习本少了2本．"三好学生"有多少人？
<result>7</result>