More than half of a class has more than two people participating in the Chinese interest group, and half of the remaining people have less than one person participating in the computer interest group. At this time, there are still 10 people left to participate in the sports team. Ask how many people there are in this class.
某班有一半多2人参加语文兴趣小组，余下的人中又有一半少1人参加计算机兴趣小组．这时还剩下10人参加体育小组．问这个班一共有多少人．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">9 * 2</gadget>
<output>18</output>

<gadget id="calculator">18 + 2</gadget>
<output>20</output>

<gadget id="calculator">20 * 2</gadget>
<output>40</output>

<result>40</result>