In a certain "Running Man" program, Deng Chao survived longer than Li Chen (1/3). Deng Chao was declared "OUT" 20 minutes after he started tearing off his name tag, and Li Chen was declared "OUT" after how many minutes he started tearing up his name tag. "?
某期"跑男"节目中，邓超比李晨的存活时间多(1/3)，邓超在开始撕名牌20分钟后被宣布"OUT"，李晨在开始撕名牌多少分钟后被宣布"OUT"？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">20 / (4/3)</gadget>
<output>15</output>

<result>15</result>