Teacher Zhang awarded 35 pencils and 40 exercise books to a number of three good students on average. As a result, the difference between the exercise books was 2, and the pencils were just right. How many good students are there at most?
张老师把35枝铅笔和40本练习本分别平均奖给若干个三好学生，结果练习本差2本，铅笔正好．三好学生最多有多少人．
<result>7</result>