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Monty Hall problem vs. roulette systems - how are they different?

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#probability #recreational-mathematics #puzzle #monty-hall
261
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Linear Algebra Recreational Problem

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#linear-algebra #matrices #recreational-mathematics
277
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Take an m x n grid, and in each box pick two opposite corners at random to connect. What can be said about the resulting pattern?

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#recreational-mathematics #percolation
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If $x$, $y$, $x+y$, and $x-y$ are prime numbers, what is their sum?

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#elementary-number-theory #prime-numbers #recreational-mathematics
632
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How did Euler solve the 4-whole-numbers-adding-up-to-a-perfect-square problem?

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#elementary-number-theory #recreational-mathematics #problem-solving
696
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Is my proof that the medians of a triangle are concurrent valid?

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#geometry #recreational-mathematics
134
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What is the smallest number which begins with 7 and if you bring the 7 to the least significant position it becomes a third of the original number?

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#recreational-mathematics
1.5k
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finding nearest perfect square for a fractional number

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#elementary-number-theory #definition #recreational-mathematics
180
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Is there a theorem that disproves this or is this just some made up meaningless thing?

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#recreational-mathematics #puzzle
237
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finding average price of two lots of shares

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#recreational-mathematics #average
399
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asymptotics of the square indicator sum for subsequences of digits

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#number-theory #recreational-mathematics
1k
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What are good methods for solving Conway's card-stacking puzzle?

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#algorithms #recreational-mathematics #puzzle
249
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Monty Hall Application

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#probability #probability-theory #recreational-mathematics #puzzle #popular-math
951
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"$n$-Yahtzee" question

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#probability #recreational-mathematics #dice
2k
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The $n$ Immortals problem.

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#combinatorics #graph-theory #puzzle #recreational-mathematics

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