3 teachers took 90 students to participate in practical activities, and took 3 cars respectively. How many people does each car take on average?
3位老师带着90名学生去参加实践活动，分别乘坐3辆汽车．平均每辆汽车要坐多少人？
<gadget id="calculator">90 + 3</gadget>
<output>93</output>

<gadget id="calculator">93 / 3</gadget>
<output>31</output>

<result>31</result>