List questions from recreational-mathematics

Published on 20 Mar 2020 - 13:01

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Having Trouble With Fun Optimization Problem

Published on 20 Mar 2020 - 18:30

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How can I find the ways that a word can be read when it seems to be read back and forth?

Published on 21 Mar 2020 - 1:20

722

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Does it exist a way how to find the ways to get from one point to another when certain points must be avoided in a grid?

Published on 21 Mar 2020 - 1:24

106

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Which functions $f$ satisfies the equation $f’(x)=\dfrac{1}{x}\left(f(\sqrt{1-x^2})- f(x)\right)$?

Published on 30 Mar 2026 - 1:48

102

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How can I find the number of segments which are of different colors in a straight line?

Published on 21 Mar 2020 - 23:41

45

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How to find the least number of weigh trials when trying to get a decimal amount?

Published on 02 Apr 2026 - 22:40

153

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Who wins the election between the positive integers $1$ through $10$?

Published on 23 Mar 2020 - 4:41

156

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Approximating square root by sexagesimal fractions

Published on 23 Mar 2020 - 7:28

42

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How to work out this probability (100 people, 2/3 chance of being correct, 55-45 split)

Published on 28 Mar 2026 - 22:13

151

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Matching two lists

Published on 31 Mar 2026 - 8:41

42

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Valuing items based on odds

Published on 24 Mar 2020 - 15:20

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A five digit number minus a four digit number equals $33333$. What are the two numbers, if you are only allowed to use the numbers $1-9$

Published on 25 Mar 2020 - 4:42

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The walking ants problem expansion.

Published on 27 Mar 2026 - 1:43

34

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how to solve the equation $sg’(s) + g(s) = ag(ks)$

Published on 30 Mar 2026 - 1:51

List Question

Finding counterfeit coins

Having Trouble With Fun Optimization Problem

How can I find the ways that a word can be read when it seems to be read back and forth?

Does it exist a way how to find the ways to get from one point to another when certain points must be avoided in a grid?

Which functions $f$ satisfies the equation $f’(x)=\dfrac{1}{x}\left(f(\sqrt{1-x^2})- f(x)\right)$?

How can I find the number of segments which are of different colors in a straight line?

How to find the least number of weigh trials when trying to get a decimal amount?

Who wins the election between the positive integers $1$ through $10$?

Approximating square root by sexagesimal fractions

How to work out this probability (100 people, 2/3 chance of being correct, 55-45 split)

Matching two lists

Valuing items based on odds

A five digit number minus a four digit number equals $33333$. What are the two numbers, if you are only allowed to use the numbers $1-9$

The walking ants problem expansion.

how to solve the equation $sg’(s) + g(s) = ag(ks)$

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