School organizes interest groups. There are 9 people participating in the calligraphy group, 24 people participating in the painting group, and the number of people participating in the singing group is three times that of the painting group? (Ask a question that uses two-step calculations, and then answer it)
学校组织兴趣小组．参加书法组的有9人，参加绘画组的有24人，参加唱歌组的人数是绘画组的3倍？(提出用两步计算的问题，再解答出来)
<gadget id="calculator">24 * 3</gadget>
<output>72</output>

<gadget id="calculator">24 + 72</gadget>
<output>96</output>

<result>96</result>