There are 105 students in the special music class of the school, and there are three grades in total. Each grade has 5 classes. How many students are there on average in each class?
学校音乐特长班有105名学生，共三个年级，每个年级5个班，平均每个班有多少名学生．
<gadget id="calculator">105 / 3 / 5</gadget>
<output>7</output>

<result>7</result>