Question

Probability: Combination and Permutation in Chess

score 1k · Answer 1 · 2026-03-25 09:25:01

1k

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Probability: Combination and Permutation in Chess

Published on 25 Mar 2026 - 9:25

score 10.5k · Answer 2 · 2026-03-25 07:46:23

10.5k

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The number of ways in which one can choose three distinct numbers from the set so that the product of the chosen numbers is divisible by $9$

Published on 25 Mar 2026 - 7:46

score 130 · Answer 3 · 2026-03-25 13:40:12

130

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combinatorics problem - permutations and e/i

Published on 25 Mar 2026 - 13:40

score 2.7k · Answer 4 · 2018-01-27 12:09:37

Number of permutations of $n$ different things, taken $r$ at a time, when $p$ particular things is to be always included in each arrangement

score 219 · Answer 5 · 2026-03-24 12:38:44

219

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a long but quite interesting adding and deleting balls problem

Published on 24 Mar 2026 - 12:38

score 118 · Answer 6 · 2026-03-25 07:46:11

118

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How many linear arrangements of $5$ A's , $3$ B's , $2$ C's are there with the first $A$ occurring before the first $B$?

Published on 25 Mar 2026 - 7:46

score 468 · Answer 7 · 2026-03-25 13:55:33

468

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Birthday probability of $k$ people and $n$ days a year such that at least $2$ people have the same bday

Published on 25 Mar 2026 - 13:55

score 566 · Answer 8 · 2018-01-28 09:29:27

566

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Probability Lock-Key Problem

Published on 28 Jan 2018 - 9:29

score 248 · Answer 9 · 2018-01-28 15:20:40

248

Views

Password Problem

Published on 28 Jan 2018 - 15:20

score 142 · Answer 10 · 2018-01-28 16:41:14

142

Views

Number of permutations of 5 boys sitting in a row in such a way that at least one boy sticks to his original seat

Published on 28 Jan 2018 - 16:41

score 134 · Answer 11 · 2018-01-28 17:29:19

134

Views

How many way can we assign 4 boys and 4 girls to 6 tables that has 2 chairs with some extra rules?

Published on 28 Jan 2018 - 17:29

score 335 · Answer 12 · 2026-03-25 07:48:46

335

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How to find permutations of specific sets of data

Published on 25 Mar 2026 - 7:48

score 56 · Answer 13 · 2018-01-28 22:58:58

56

Views

Number of inversions in the permutation $(ijk)$.

Published on 28 Jan 2018 - 22:58

score 628 · Answer 14 · 2018-01-28 23:22:15

628

Views

Mathematical notation of matrix row or column circular permutation

Published on 28 Jan 2018 - 23:22

score 1.4k · Answer 15 · 2026-03-25 07:42:56

1.4k

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Permutations and combinations – pens of same color

Published on 25 Mar 2026 - 7:42

List Question

Probability: Combination and Permutation in Chess

The number of ways in which one can choose three distinct numbers from the set so that the product of the chosen numbers is divisible by $9$

combinatorics problem - permutations and e/i

Number of permutations of $n$ different things, taken $r$ at a time, when $p$ particular things is to be always included in each arrangement

a long but quite interesting adding and deleting balls problem

How many linear arrangements of $5$ A's , $3$ B's , $2$ C's are there with the first $A$ occurring before the first $B$?

Birthday probability of $k$ people and $n$ days a year such that at least $2$ people have the same bday

Probability Lock-Key Problem

Password Problem

Number of permutations of 5 boys sitting in a row in such a way that at least one boy sticks to his original seat

How many way can we assign 4 boys and 4 girls to 6 tables that has 2 chairs with some extra rules?

How to find permutations of specific sets of data

Number of inversions in the permutation $(ijk)$.

Mathematical notation of matrix row or column circular permutation

Permutations and combinations – pens of same color

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