Guess. A bunch of balloons, more than 20, less than 30. The nursery aunt distributes them equally to several children, and the number of each child is as much as the number of children. Ask students to guess, how many balloons are there in this pile?
猜一猜．一堆气球，比20个多，比30个少．幼儿园阿姨把它们平均分给几个小朋友，每个小朋友分得的个数与小朋友的人数一样多．请同学们猜一猜，这堆气球究竟有多少个？
<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<result>25</result>