A school has 9 students in the first grade and 36 students in the second grade, how many times the number of students in the second grade is the first grade.
某学校一年级有学生9人，二年级有学生36人，二年级人数是一年级的多少倍．
<gadget id="calculator">36 / 9</gadget>
<output>4</output>

<result>4</result>