There are 20 football and basketball games in the school, which are suitable for 96 students to play at the same time. Every 6 students play one football game, and every 3 basketball students play one game. How many football games are there?
学校有足球和篮球共20个，恰好可供96名同学同时活动，足球每6人玩一个，篮球每3人玩一个，其中足球有多少个．
<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<gadget id="calculator">6 - 3</gadget>
<output>3</output>

<gadget id="calculator">24 / 3</gadget>
<output>8</output>

<gadget id="calculator">20 - 8</gadget>
<output>12</output>

<result>12</result>