Mathematics
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All Questions Answers
Score Newest
question
65
7 fishermen caught exactly 100 fish and no two had caught the same number of fish. Then there are three who have together captured at least 50 fish.
Sep 30, 2018
question
58
An illusionist and their assistant are about to perform the following magic trick
Jul 24, 2020
answer
51
How do you correctly reason that this directed graph is acyclic?
May 24, 2018
answer
50
How to prove that $\sqrt{2+\sqrt3}-\sqrt{2-\sqrt3}=\sqrt2$ without squaring both sides
Dec 17, 2017
question
46
For which $n\in\Bbb N$ can we divide $\{1,2,3,...,3n\}$ into $n$ subsets each with $3$ elements such that in each subset $\{x,y,z\}$ we have $x+y=3z$?
Jun 22, 2021
answer
45
Compute polynomial $p(x)$ if $x^5=1,\, x\neq 1$ [reducing mod $\textit{simpler}$ multiples]
May 13, 2019
answer
45
How do you explain to a 5th grader why division by zero is meaningless?
Aug 15, 2018
answer
43
What is the closed form of the $f$ with $f(1)=1$, $f(2)=7$ and $f(n)=7f(n-1)-12f(n-2)$ ($n\ge 3$)?
Jul 14, 2019
answer
38
Putting socks and shoes on a spider
Jan 29, 2019
answer
32
When is $n^{2015}+n+1$ prime?
Aug 10, 2017
Top Meta posts
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3
Blocking to ask a question for a beginner.
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18
Board with all 2020s
14
Good, simple examples of induction?
11
Domination problem with sets
11
Who will win in a game of writing 3 consecutive Xs on a 2022 × 1 board?
9
Puzzle with the point inside paralelogram and area

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