This problem has been shared millions of times on Twitter/Facebook with the claim "99% fail" to solve it and that only a genius could find the correct answer. If 9 = 72, 8 = 56, 7 = 42, 6 = 30, 5 = 20, then 3 = ? In this video I explain what many people believe to be the correct answer. I also show how this answer is logical for other patterns seen in the puzzle. My blog post on this video (with links to sources) http://wp.me/p6aMk-4Xq If you like my videos, you can support me at Patreon: http://wp.me/p6aMk-4Xq Connect on social media. I update each site when I have a new video or blog post, so you can follow me on whichever method is most convenient for you. My Blog: http://wp.me/p6aMk-4Xq Twitter: http://wp.me/p6aMk-4Xq Facebook: http://wp.me/p6aMk-4Xq Google+: http://wp.me/p6aMk-4Xq Pinterest: http://wp.me/p6aMk-4Xq Tumblr: http://wp.me/p6aMk-4Xq Instagram: http://wp.me/p6aMk-4Xq Patreon: http://wp.me/p6aMk-4Xq Newsletter (sent only for big news, like a new book release): http://wp.me/p6aMk-4Xq If you buy from the links below I may receive a commission for sales. This has no effect on the price for you. My Books "The Joy of Game Theory" shows how you can use math to out-think your competition. (rated 3.8/5 stars on 31 reviews) http://wp.me/p6aMk-4Xq "The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" is a handbook that explains the many ways we are biased about decision-making and offers techniques to make smart decisions. (rated 5/5 stars on 2 reviews) http://wp.me/p6aMk-4Xq "Math Puzzles Volume 1" features classic brain teasers and riddles with complete solutions for problems in counting, geometry, probability, and game theory. Volume 1 is rated 4.4/5 stars on 13 reviews. http://wp.me/p6aMk-4Xq "Math Puzzles Volume 2" is a sequel book with more great problems. (rated 5/5 stars on 3 reviews) http://wp.me/p6aMk-4Xq "Math Puzzles Volume 3" is the third in the series. (rated 3.8/5 stars on 4 reviews) http://wp.me/p6aMk-4Xq "40 Paradoxes in Logic, Probability, and Game Theory" contains thought-provoking and counter-intuitive results. (rated 4.3/5 stars on 12 reviews) http://wp.me/p6aMk-4Xq "The Best Mental Math Tricks" teaches how you can look like a math genius by solving problems in your head (rated 4.7/5 stars on 4 reviews) http://wp.me/p6aMk-4Xq "Multiply Numbers By Drawing Lines" This book is a reference guide for my video that has over 1 million views on a geometric method to multiply numbers. (rated 5/5 stars on 3 reviews) http://wp.me/p6aMk-4Xq

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