Question

$5$-Letter Word with $d$ occurring at least once

score 113 · Answer 1 · 2026-04-14 11:42:54

113

Views

$5$-Letter Word with $d$ occurring at least once

Published on 14 Apr 2026 - 11:42

score 96 · Answer 2 · 2026-04-15 02:45:42

96

Views

Create $n$ subset of $S$ so that union of any $k$ of them is equal to $S$

Published on 15 Apr 2026 - 2:45

score 198 · Answer 3 · 2026-04-13 09:21:45

198

Views

Number of ways to distribute $20$ identical pencils to $6$ children with no restrictions.

Published on 13 Apr 2026 - 9:21

score 99 · Answer 4 · 2026-04-09 10:33:02

99

Views

Calculate #'s of possibilities

Published on 09 Apr 2026 - 10:33

score 737 · Answer 5 · 2026-04-14 16:41:43

737

Views

How many ways can five girls and five guys stand in a line

Published on 14 Apr 2026 - 16:41

score 66 · Answer 6 · 2026-03-26 07:56:53

66

Views

Help with permutation (13)(246)(1524)

Published on 26 Mar 2026 - 7:56

score 718 · Answer 7 · 2026-04-13 04:49:03

718

Views

How to give a combinatorial proof for: If $n$ and $k$ are positive integers with $n=2k$ then $\frac{n!}{2^k}$ is an integer

Published on 13 Apr 2026 - 4:49

score 27 · Answer 8 · 2026-04-14 21:11:03

27

Views

How many permutations of 2 things, each appearing an arbitrary number of times in an arbitrarily sized set?

Published on 14 Apr 2026 - 21:11

score 85 · Answer 9 · 2026-04-15 00:55:21

85

Views

Count elements of order 6 in $D_3 \times S_4 \times \mathbb{Z}_4$

Published on 15 Apr 2026 - 0:55

score 445 · Answer 10 · 2026-04-23 10:43:31

445

Views

Shapley values, different versions of the symmetry axiom

Published on 23 Apr 2026 - 10:43

score 823 · Answer 11 · 2026-03-26 16:06:32

823

Views

Are the Dihedral Groups of order $n!$ isomorphic to $S_n$?

Published on 26 Mar 2026 - 16:06

score 111 · Answer 12 · 2026-04-11 22:35:27

111

Views

Binomial coefficient when the order is smallest to largest

Published on 11 Apr 2026 - 22:35

score 134 · Answer 13 · 2026-04-15 08:45:14

134

Views

There are 5 different colours. In how many ways can you colour the nodes such that no two nodes connected by a link have the same colour?

Published on 15 Apr 2026 - 8:45

score 42 · Answer 14 · 2026-04-15 11:54:16

42

Views

How can I prove that the sign of the permutation below is $(-1)^n$?

Published on 15 Apr 2026 - 11:54

score 76 · Answer 15 · 2026-04-09 09:30:20

76

Views

How many ways to paint $n$ windows?

Published on 09 Apr 2026 - 9:30

List Question

$5$-Letter Word with $d$ occurring at least once

Create $n$ subset of $S$ so that union of any $k$ of them is equal to $S$

Number of ways to distribute $20$ identical pencils to $6$ children with no restrictions.

Calculate #'s of possibilities

How many ways can five girls and five guys stand in a line

Help with permutation (13)(246)(1524)

How to give a combinatorial proof for: If $n$ and $k$ are positive integers with $n=2k$ then $\frac{n!}{2^k}$ is an integer

How many permutations of 2 things, each appearing an arbitrary number of times in an arbitrarily sized set?

Count elements of order 6 in $D_3 \times S_4 \times \mathbb{Z}_4$

Shapley values, different versions of the symmetry axiom

Are the Dihedral Groups of order $n!$ isomorphic to $S_n$?

Binomial coefficient when the order is smallest to largest

There are 5 different colours. In how many ways can you colour the nodes such that no two nodes connected by a link have the same colour?

How can I prove that the sign of the permutation below is $(-1)^n$?

How many ways to paint $n$ windows?

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