Question

Probability: Combination and Permutation in Chess

score 1k · Answer 1 · 2026-04-15 14:54:35

1k

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Probability: Combination and Permutation in Chess

Published on 15 Apr 2026 - 14:54

score 10.5k · Answer 2 · 2026-04-14 07:44:08

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 14 Apr 2026 - 7:44

score 138 · Answer 3 · 2026-05-06 12:59:39

138

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combinatorics problem - permutations and e/i

Published on 06 May 2026 - 12:59

score 2.7k · Answer 4 · 2026-04-16 02:17:20

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 230 · Answer 5 · 2026-05-07 11:27:44

230

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a long but quite interesting adding and deleting balls problem

Published on 07 May 2026 - 11:27

score 120 · Answer 6 · 2026-04-14 16:40:32

120

Views

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 14 Apr 2026 - 16:40

score 477 · Answer 7 · 2026-04-29 12:46:20

477

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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 29 Apr 2026 - 12:46

score 570 · Answer 8 · 2026-04-11 07:02:40

570

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Probability Lock-Key Problem

Published on 11 Apr 2026 - 7:02

score 253 · Answer 9 · 2026-04-14 19:25:56

253

Views

Password Problem

Published on 14 Apr 2026 - 19:25

score 145 · Answer 10 · 2026-04-16 11:37:36

145

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 16 Apr 2026 - 11:37

score 137 · Answer 11 · 2026-04-13 10:06:08

137

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 13 Apr 2026 - 10:06

score 337 · Answer 12 · 2026-04-11 05:03:34

337

Views

How to find permutations of specific sets of data

Published on 11 Apr 2026 - 5:03

score 59 · Answer 13 · 2026-04-18 04:30:34

59

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

Published on 18 Apr 2026 - 4:30

score 633 · Answer 14 · 2026-04-16 17:02:41

633

Views

Mathematical notation of matrix row or column circular permutation

Published on 16 Apr 2026 - 17:02

score 1.4k · Answer 15 · 2026-04-13 02:06:46

1.4k

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Permutations and combinations – pens of same color

Published on 13 Apr 2026 - 2:06

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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