Xiao Liang has to complete these things in the morning: boil water for 10 minutes, take milk for 5 minutes, and organize schoolbag for 4 minutes. How many minutes is the minimum required to complete these tasks.
小亮早晨要完成这几件事：烧开水10分钟，取牛奶5分钟，整理书包4分钟，要做完这些事，最少需要多少分钟．
<result>10</result>