(Same video with music: [ Ссылка ]) You visit a shrine that has 3 temples. Before each temple, you have to swim in a magical pond. Your path is pond-temple1-pond-temple2-pond-temple 3. Each time you swim, the pond magically triples the number of flowers you are carrying. At the start you have some flowers. At each temple you place an equal number of flowers. And at the end you have no flowers. What is the least number of flowers you could have started with? And how many flowers did you place at each temple? The video presents a solution to the problem. This puzzle has a practical application--it is an example of a financial annuity! The video derives the annuity formula and demonstrates the connection with the magical pond. I also created a version of this video with music: [ Ссылка ]. Let me know if you prefer music in these videos.

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My Books

"The Joy of Game Theory" shows how you can use math to out-think your competition. (rated 4/5 stars on 23 reviews) [ Ссылка ]

"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 1 review) [ Ссылка ]

"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 4.5/5 stars on 11 reviews. [ Ссылка ]

"Math Puzzles Volume 2" is a sequel book with more great problems. [ Ссылка ]

"Math Puzzles Volume 3" is the third in the series. [ Ссылка ]

"40 Paradoxes in Logic, Probability, and Game Theory" contains thought-provoking and counter-intuitive results. (rated 4.9/5 stars on 7 reviews) [ Ссылка ]

"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 3 reviews) [ Ссылка ]

"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 1 review) [ Ссылка ]

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