Can you solve the rebel supplies riddle? – 亚历克斯·詹德勒

Practice more problem-solving at https://brilliant.org/TedEd/
Solution to Bonus Riddle: ❤️情人节美甲💅教程#20nails://brilliant.org/tededmislabelledboxes/

You’re overseeing the delivery of supplies to a rebel base in the heart of enemy territory. To get past customs, all packages must follow this rule: if a box is marked with an even number on the bottom, it must be sealed with a red top. One of the four boxes was sealed incorrectly, but they lost track of which one. Can you figure out which box it is and save the day? Alex Gendler shows how.

Lesson by Alex Gendler, directed by Artrake Studio.

Thank you so much to our patrons for supporting us on Patreon! 没有你，这个视频是不可能的! 乔丹·唐, 克里斯托弗·希门尼斯, 胡安, 特蕾西·托布金, 席德, 艾米莉林, 凯瑟琳·J·哈蒙德, 艾略特·普林, 圣诞原地, 拉托拉·斯莱德尔, 悉尼埃文斯, 维克多·E·卡赫尔, Eysteinn Guðnason, 安德里亚快乐, 娜塔莉·里科, 乔什·恩格尔, 芭芭拉·纳扎雷, Zhexi Shan, PnDAA, 桑德拉·特斯鲁森, 艾伦·斯佩图斯, 法比安·阿梅尔斯, 吴三美, 马蒂亚·维特里, 昆汀·勒梅内斯, 斋藤裕, 希瑟·斯莱特, Dr Luca Carpinelli, Christophe Dessalles, Arturo De Leon, Eduardo Briceño, Ricardo Paredes, David Douglass, Grant Albert, Jen , Megan Whiteleather, Mayank Kaul, Ryohky Araya, Tan YH, Ph.D., Brittiny Elman, Kostadin Mandulov, Yanuar Ashari, Mrinalini, Anthony Kudolo, Querida Owens, Hazel Lam, Manav parmar, Siamak H, and Dominik Kugelmann,