It is a small computer game, it takes 8 minutes to play a round, and it can be played by one player or two players. 3 children want to play, only one computer, each play two games, at least how many minutes.
一种电脑小游戏，玩一局要8分钟，可以单人玩，也可以双人玩．3位小朋友要玩，只有一台电脑，每人玩两局，至少需要多少分钟．
<gadget id="calculator">8 * 3</gadget>
<output>24</output>

<result>24</result>