Question

Number of combinations with C-pair of N elements

score 104 · Answer 1 · 2026-04-16 23:10:32

104

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Number of combinations with C-pair of N elements

Published on 16 Apr 2026 - 23:10

score 110 · Answer 2 · 2026-04-11 05:51:56

110

Views

How many different ways can the 5 pairs be chosen?

Published on 11 Apr 2026 - 5:51

score 4.8k · Answer 3 · 2026-04-16 12:06:28

Among a set of 5 black balls and 3 red balls, how many selections of 5 balls can be made such that at least 3 of them are black balls.

score 41 · Answer 4 · 2026-04-14 23:10:52

41

Views

Partitioning numbers 1 to 16 into four groups each having four numbers such that each tallies the same

Published on 14 Apr 2026 - 23:10

score 58 · Answer 5 · 2026-03-25 09:50:18

58

Views

Probability for hand with no sets (3+ of a kind / straight flush of 3+ cards) or potential sets (no additional card can make a set) in a card game?

Published on 25 Mar 2026 - 9:50

score 22 · Answer 6 · 2026-04-14 22:36:17

22

Views

Possible combinations of drink orders with 7 orders, 3 sizes. With condition

Published on 14 Apr 2026 - 22:36

score 39 · Answer 7 · 2026-04-13 15:43:57

39

Views

Permutations problems

Published on 13 Apr 2026 - 15:43

score 78 · Answer 8 · 2026-04-09 11:34:00

78

Views

Particular permutations: derangement with additional limitations

Published on 09 Apr 2026 - 11:34

score 124 · Answer 9 · 2026-04-14 10:09:26

124

Views

Rearranging a set with limitations on how far each element can move

Published on 14 Apr 2026 - 10:09

score 67 · Answer 10 · 2026-04-15 14:12:11

67

Views

Is this permutations or combinations, and how would I solve it.

Published on 15 Apr 2026 - 14:12

score 52 · Answer 11 · 2026-04-12 22:42:09

52

Views

Galois Theory - Permutations of a Rational Roots Polynomial (mindless typo)

Published on 12 Apr 2026 - 22:42

score 85 · Answer 12 · 2026-04-11 10:29:50

85

Views

Difficult permutation and inclusion-exclusion principle problem.

Published on 11 Apr 2026 - 10:29

score 4.5k · Answer 13 · 2026-04-10 07:53:39

4.5k

Views

Counting permutations: different ways for 10 people to stand in line for a photograph given specific restrictions

Published on 10 Apr 2026 - 7:53

score 56 · Answer 14 · 2026-04-14 08:34:52

56

Views

Number of unique permutations of letters

Published on 14 Apr 2026 - 8:34

score 522 · Answer 15 · 2026-03-25 09:53:28

522

Views

Is there a linear transformation that would flip the elements of a matrix around its center?

Published on 25 Mar 2026 - 9:53

List Question

Number of combinations with C-pair of N elements

How many different ways can the 5 pairs be chosen?

Among a set of 5 black balls and 3 red balls, how many selections of 5 balls can be made such that at least 3 of them are black balls.

Partitioning numbers 1 to 16 into four groups each having four numbers such that each tallies the same

Probability for hand with no sets (3+ of a kind / straight flush of 3+ cards) or potential sets (no additional card can make a set) in a card game?

Possible combinations of drink orders with 7 orders, 3 sizes. With condition

Permutations problems

Particular permutations: derangement with additional limitations

Rearranging a set with limitations on how far each element can move

Is this permutations or combinations, and how would I solve it.

Galois Theory - Permutations of a Rational Roots Polynomial (mindless typo)

Difficult permutation and inclusion-exclusion principle problem.

Counting permutations: different ways for 10 people to stand in line for a photograph given specific restrictions

Number of unique permutations of letters

Is there a linear transformation that would flip the elements of a matrix around its center?

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