Investigate the total number of third and fourth grade students in your school. If you go to the cinema to watch a movie, each row can seat 30 people on average. At least how many rows can these students sit in?
调查你们学校三、四年级学生的总人数，如果到电影院看电影，平均每排可以坐30人．这些学生至少可以坐多少排？
<gadget id="calculator">930 / 30</gadget>
<output>31</output>

<result>31</result>