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TOUGH Interview Question - Ways To Give 11 Coins To 3 People

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 Brain Teasers   |   Math
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How many ways can you divide 11 coins to 3 people? How many ways are there if each person has to get at least 1 coin? This puzzle is an example of a technical interview question. The video demonstrates the solution, which indicates the number of non-negative (and positive) integer solutions when you have R variables adding up to N.

Blog post (text summary): http://wp.me/p6aMk-4qg

This question was asked as a recruitment puzzle for a quantitative researcher:
http://wwwhome.ewi.utwente.nl/~gerezsh/recmath/index.html

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"The Joy of Game Theory" shows how you can use math to out-think your competition. (rated 4/5 stars on 21 reviews) http://amzn.to/1uQvA20

"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 4.6/5 stars on 9 reviews. http://amzn.to/1GhUUSH

"Math Puzzles Volume 2" is a sequel book with more great problems. http://amzn.to/1NKbyCs

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"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. http://amzn.to/XRm7M4

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