There were originally 30 classmates on the playground, and another 25 classmates came. How many rows can these students line up with 5 people?
操场上原来有30个同学，又来25个同学．这些同学5人排一行，可以排多少行？
<gadget id="calculator">30 + 25</gadget>
<output>55</output>

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

<result>11</result>