The choir is rehearsing. There are 8 people in the first row, 2 more people in each row after that, and 16 people in the last row. How many people are there in this group?
合唱团排练，第一排8人，以后每排比前一排多2人，最后一排16人，这个团有多少人？
<gadget id="calculator">8 + 16</gadget>
<output>24</output>

<gadget id="calculator">16 - 8</gadget>
<output>8</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">24 * (5/2)</gadget>
<output>60</output>

<result>60</result>