There are 50 students in the second class of the fourth grade, and they have done 400 good deeds. How many good deeds does each person do on average?
四年级二班共有学生50人，他们共做好事400件．平均每人做好事多少件？
<gadget id="calculator">400 / 50</gadget>
<output>8</output>

<result>8</result>