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View full lesson: http://ed.ted.com/lessons/can-you-solve-the-airplane-riddle-judd-a-schorr...
Practice more problem-solving at https://brilliant.org/TedEd/ Sign up to be emailed the solution...
Practice more problem-solving at https://brilliant.org/TedEd/ Sign up to be emailed the solution...
Practice more problem-solving at https://brilliant.org/TedEd/ Solution to Bonus Riddle:...