The school organizes the students to go swimming. There are 369 girls and 381 boys. They are divided into 30 groups on average. How many people are there in each group?
学校组织同学们去游泳，女生去369人，男生去381人，把他们平均分成30个小组，每个小组有多少人？
<gadget id="calculator">369 + 381</gadget>
<output>750</output>

<gadget id="calculator">750 / 30</gadget>
<output>25</output>

<result>25</result>