Students from 11 classes took a spring outing, with an average of 45 students per class. Taking 9 buses, how many people are charged per bus on average?
11个班的同学春游，平均每班45人．乘坐9辆大客车，平均每辆大客车坐多收人？
<gadget id="calculator">45 / 9</gadget>
<output>5</output>

<gadget id="calculator">11 * 5</gadget>
<output>55</output>

<result>55</result>