A batch of clothing was completed by 25 people in 12 days. After 6 days of work, another 5 people were added, and it took a few days to complete the task.
一批服装，25人12天完成，工作6天后，又增加5个人，还要几天完成任务．
<gadget id="calculator">25 * 1 * 12</gadget>
<output>300</output>

<gadget id="calculator">300 / 2</gadget>
<output>150</output>

<gadget id="calculator">25 + 5</gadget>
<output>30</output>

<gadget id="calculator">150 / 30 / 1</gadget>
<output>5</output>

<result>5</result>