List questions from recreational-mathematics

Published on 09 Apr 2026 - 23:02

346

Views

Suppose $f(x)-f(y)=h(g(x)-g(y))$, then $h$ is linear?

Published on 14 Apr 2026 - 1:11

400

Views

Reducing $2018^{2018}\pmod6$ via $\mod2$ and $\mod3$

Published on 15 Apr 2026 - 5:48

83

Views

Limits of the digits of Squared Numbers

Published on 11 Apr 2026 - 1:35

529

Views

Christmas Tree Problem: String around Cone

Published on 13 Apr 2026 - 9:45

49

Views

Determine the final stage of a game

Published on 12 Apr 2026 - 6:33

204

Views

Is there a "nice" rep-tile of order $6$?

Published on 12 Apr 2026 - 9:11

685

Views

Solving Dudeney's "A Question of Cubes": sum of consecutive cubes is a square

Published on 14 Apr 2026 - 21:39

458

Views

What is the chance that an infinite series of random numbers will, at some point, repeat all previously generated numbers in that order?

Published on 14 Apr 2026 - 15:36

195

Views

Addition vs multiplication as binary operators

Published on 12 Apr 2026 - 21:07

103

Views

Probability of seeing each face except one in $n$ throws of a die with 4 faces

Published on 14 Apr 2026 - 19:23

51

Views

Calculate the $F^{−1}$ of a function

Published on 13 Apr 2026 - 19:13

19

Views

How to calculate overall conversion percentage?

Published on 08 Apr 2026 - 23:15

121

Views

Given positive real numbers a and b, prove that $\frac{2}{\frac{a}{x}+\frac{b}{y}} \leq ax + by, x>0, y>0$

Published on 24 Apr 2026 - 3:16

115

Views

How to find the last page of a book when some numbers are skipped?

Published on 10 Apr 2026 - 22:31

List Question

Stopping the Coronavirus puzzle

Suppose $f(x)-f(y)=h(g(x)-g(y))$, then $h$ is linear?

Reducing $2018^{2018}\pmod6$ via $\mod2$ and $\mod3$

Limits of the digits of Squared Numbers

Christmas Tree Problem: String around Cone

Determine the final stage of a game

Is there a "nice" rep-tile of order $6$?

Solving Dudeney's "A Question of Cubes": sum of consecutive cubes is a square

What is the chance that an infinite series of random numbers will, at some point, repeat all previously generated numbers in that order?

Addition vs multiplication as binary operators

Probability of seeing each face except one in $n$ throws of a die with 4 faces

Calculate the $F^{−1}$ of a function

How to calculate overall conversion percentage?

Given positive real numbers a and b, prove that $\frac{2}{\frac{a}{x}+\frac{b}{y}} \leq ax + by, x>0, y>0$

How to find the last page of a book when some numbers are skipped?

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