Question

How to calculate the sum of the total set of numbers from a set of digits (without repetition)?

score 406 · Answer 1 · 2026-03-26 06:23:10

406

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How to calculate the sum of the total set of numbers from a set of digits (without repetition)?

Published on 26 Mar 2026 - 6:23

score 107 · Answer 2 · 2026-03-25 09:37:20

107

Views

Reordering 26 letters, probability of certain outcomes

Published on 25 Mar 2026 - 9:37

score 93 · Answer 3 · 2026-03-24 08:13:32

93

Views

Proof of $Af = \sum_{\sigma \in S_{k}} (Sgn \sigma) \sigma f$ is an alternating function.

Published on 24 Mar 2026 - 8:13

score 2.2k · Answer 4 · 2018-02-20 14:06:52

2.2k

Views

How many $7$-digit telephone numbers with distinct digits starting with $927$ are there?

Published on 20 Feb 2018 - 14:06

score 415 · Answer 5 · 2018-02-20 14:27:13

415

Views

permutation: seven boys and 4 girls

Published on 20 Feb 2018 - 14:27

score 1.7k · Answer 6 · 2018-02-20 14:50:27

1.7k

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permutation-8 people forming a circle with two to be seated with each other

Published on 20 Feb 2018 - 14:50

score 97 · Answer 7 · 2026-03-22 06:57:59

97

Views

Rubik's Cube and the symmetric group

Published on 22 Mar 2026 - 6:57

score 4.3k · Answer 8 · 2018-02-20 16:00:29

4.3k

Views

In how many ways may $5$ people sit in a row of five chairs if two of them refuse to sit next to each other?

Published on 20 Feb 2018 - 16:00

score 579 · Answer 9 · 2018-02-20 16:49:39

579

Views

Number of permutations of letters of the word PENDULAM such that vowels are never togehter

Published on 20 Feb 2018 - 16:49

score 873 · Answer 10 · 2026-03-27 03:01:23

873

Views

Queues and permutation/combination

Published on 27 Mar 2026 - 3:01

score 2.1k · Answer 11 · 2026-03-25 09:28:29

2.1k

Views

How to find cyclic subgroup of group of permutations?

Published on 25 Mar 2026 - 9:28

score 363 · Answer 12 · 2026-03-25 22:05:17

363

Views

Arranging a packet of skittles with repetitions of flavor

Published on 25 Mar 2026 - 22:05

score 237 · Answer 13 · 2026-03-26 17:41:55

237

Views

Ordered Permutations

Published on 26 Mar 2026 - 17:41

score 378 · Answer 14 · 2018-02-21 09:17:43

In how many ways can $16$ executives, including two brothers, be arranged around a circular table if the two brothers can't be seated together?

score 47 · Answer 15 · 2018-02-21 09:41:22

47

Views

Combinations Positioning of Digits

Published on 21 Feb 2018 - 9:41

List Question

How to calculate the sum of the total set of numbers from a set of digits (without repetition)?

Reordering 26 letters, probability of certain outcomes

Proof of $Af = \sum_{\sigma \in S_{k}} (Sgn \sigma) \sigma f$ is an alternating function.

How many $7$-digit telephone numbers with distinct digits starting with $927$ are there?

permutation: seven boys and 4 girls

permutation-8 people forming a circle with two to be seated with each other

Rubik's Cube and the symmetric group

In how many ways may $5$ people sit in a row of five chairs if two of them refuse to sit next to each other?

Number of permutations of letters of the word PENDULAM such that vowels are never togehter

Queues and permutation/combination

How to find cyclic subgroup of group of permutations?

Arranging a packet of skittles with repetitions of flavor

Ordered Permutations

In how many ways can $16$ executives, including two brothers, be arranged around a circular table if the two brothers can't be seated together?

Combinations Positioning of Digits

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