The school held a sports meeting, with 480 athletes from 5 grades participating, and each grade had four classes. Question: How many athletes in each class participated in the sports meeting on average?
学校举行运动会，共有5个年级480名运动员参加，每个年级有四个班级，问：平均每个班级有多少运动员参加运动会？
<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">480 / 20</gadget>
<output>24</output>

<result>24</result>