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\nHOW SMART ARE YOU? The Stolen Bill Riddle (Viral Math Problem) - The Correct Answer Explained\n

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\nThis problem is making the rounds on Facebook and Twitter with thousands of people arguing about the correct answer. How smart are you? A guy walks into a store and steals a $100 bill from the register without the owner's knowledge. He...\nThis problem is making the rounds on Facebook and Twitter with thousands of people arguing about the correct answer. How smart are you? A guy walks into a store and steals a $100 bill from the register without the owner's knowledge. He then buys $70 worth of goods using the $100 bill and the owner gives $30 in change. How much money did the owner lose? $30, $70, $100, $130, $170, or $200? My blog post for this video Sources Thanks to Eric for sending me this problem by email. One version of the problem on Facebook with 20,000 shares Sorry I can't reply to your emails about this! I have been getting a lot of emails with alternate answers and asking to find the mistake in reasoning. I've explained all I can in this post and the video, so if you still don't agree you'll have to ask someone else. Subscribe Playlist to watch all videos on MindYourDecisions This is the only channel to feature math topics suggested by people around the world. Support the channel on Patreon so we can share the beauty of mathematics and make the world a better place 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 4/5 stars on 34 reviews) \"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 4.6/5 stars on 3 reviews) \"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. \"Math Puzzles Volume 2\" is a sequel book with more great problems. (rated 4.5/5 stars on 6 reviews) \"Math Puzzles Volume 3\" is the third in the series. (rated 4/5 stars on 6 reviews) \"40 Paradoxes in Logic, Probability, and Game Theory\" contains thought-provoking and counter-intuitive results. (rated 4.4/5 stars on 13 reviews) \"The Best Mental Math Tricks\" teaches how you can look like a math genius by solving problems in your head (rated 4.8/5 stars on 5 reviews) \"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 4.4/5 stars on 5 reviews) Connect with me My Blog Twitter Facebook Google+ Pinterest Tumblr Instagram Patreon Newsletter (sent only for big news, like a new book release)\n
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Resource Details

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Educator Rating
Not yet Rated
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Grade
6th - 11th
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All Subjects
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Media Type
Instructional Videos
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Source:
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Date
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2019
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Audiences
For Teacher Use
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