Students go rowing, 23 boys, 21 girls, one boat for every 4 people, how many boats are needed in total?
同学们去划船，男生23人，女生21人，每4人一条船，一共需要多少条船？
<gadget id="calculator">23 + 21</gadget>
<output>44</output>

<gadget id="calculator">44 / 4</gadget>
<output>11</output>

<result>11</result>