Video by Art of Problem Solving. Problem from the MAA American Mathematics Competitions. Created by Art of Problem Solving. Watch the next lesson: www.khanacademy.org/math/math-for-fun-and-glory/aime/2003-aime/v/2003-aime-ii-problem-1?utm_source=YT&utm_medium=Desc&utm_campaign=mathforfunandglory Missed the previous lesson? www.khanacademy.org/math/math-for-fun-and-glory/amc-10/2013-amc-10-a/v/2013-amc-10-a-24?utm_source=YT&utm_medium=Desc&utm_campaign=mathforfunandglory Math For Fun and Glory on Khan Academy: The AMC 10 is part of the series of contests administered by the MAA American Mathematics Competitions that determines the United States team in the International Math Olympiad. The AMC 10 is a 25 question, 75 minute multiple choice test for students in 10th grade or below. Two versions of the AMC 10 are offered each year. This content is brought to you by the Art of Problem Solving (www.aops.com) About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Math For Fun and Glory channel: www.youtube.com/channel/UCrHuSfezaER8svQZiec1mIQ?sub_confirmation=1 Subscribe to Khan Academy: www.youtube.com/subscription_center?add_user=khanacademy