There are 84 people in the sixth grade who participated in the New Year's Day performance. They are divided into three groups. The ratio of the number of people in the first group to the second group is 3:5. The number of people in the third group is 6 more than that of the second group. How many people are there in the third group? Going to a show?
六年级有84人参加庆元旦演出，共分成三个组，第一组和第二组的人数比是3：5，第三组的人数比第二组多6人，第三组有多少人参加演出？
<gadget id="calculator">84 - 6</gadget>
<output>78</output>

<gadget id="calculator">3 + 5 + 5</gadget>
<output>13</output>

<gadget id="calculator">78 / 13</gadget>
<output>6</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<gadget id="calculator">30 + 6</gadget>
<output>36</output>

<result>36</result>