Question

codes composed of six uppercase English characters, at least two characters are different between any two codes, how many codes can be generated?

score 44 · Answer 1 · 2026-04-14 17:16:42

44

Views

codes composed of six uppercase English characters, at least two characters are different between any two codes, how many codes can be generated?

Published on 14 Apr 2026 - 17:16

score 1.7k · Answer 2 · 2026-04-15 08:10:28

Number of permutations of the letters $a, b, c, d$ such that $b$ does not follow $a$, and $c$ does not follow $b$, and $d$ does not follow $c$

score 114 · Answer 3 · 2026-04-18 07:52:50

114

Views

Each permutation in permutation group PSL2 consist of fixed points and cycles of equal lengths. Prove or disprove it.

Published on 18 Apr 2026 - 7:52

score 406 · Answer 4 · 2026-04-13 02:36:20

406

Views

What is the probability that balls left are white?

Published on 13 Apr 2026 - 2:36

score 66 · Answer 5 · 2026-04-13 01:13:45

66

Views

Find the probability using the formula for the number of permutations with repetitions

Published on 13 Apr 2026 - 1:13

score 43 · Answer 6 · 2026-04-16 08:51:12

43

Views

League Table so final match day is irrelevant

Published on 16 Apr 2026 - 8:51

score 1k · Answer 7 · 2026-04-12 10:00:16

1k

Views

What is the permutation of choosing the just 3 balls in a pool of 16 balls?

Published on 12 Apr 2026 - 10:00

score 73 · Answer 8 · 2026-04-13 19:42:07

How many $7$-digit numbers can be generated with numbers in $S=\{1,2,3,4\}$ such that all of the numbers in $S$ are used at least once?

score 101 · Answer 9 · 2026-04-17 09:58:52

101

Views

Show that a linear map commutes with a symmetric group action

Published on 17 Apr 2026 - 9:58

score 52 · Answer 10 · 2026-04-16 15:35:17

52

Views

Minimum number of sub groups so that each element is grouped with every other element at least once

Published on 16 Apr 2026 - 15:35

score 568 · Answer 11 · 2026-04-14 20:16:02

568

Views

Combination of 5 balls

Published on 14 Apr 2026 - 20:16

score 53 · Answer 12 · 2026-03-25 17:38:53

53

Views

Maximize area spanned by convex hull of a permutation

Published on 25 Mar 2026 - 17:38

score 251 · Answer 13 · 2026-05-02 06:07:42

251

Views

$4$-element subset of $\{1..6\}$ that includes $1$ or $4$, and $2$ or $5$, and $3$ or $6$?

Published on 02 May 2026 - 6:07

score 208 · Answer 14 · 2026-04-15 12:05:08

208

Views

Number of wrong answers

Published on 15 Apr 2026 - 12:05

score 1.6k · Answer 15 · 2026-04-15 07:23:47

1.6k

Views

Number of ways to distribute 13 (out of 52) cards to 4 indistinguishable players.

Published on 15 Apr 2026 - 7:23

List Question

codes composed of six uppercase English characters, at least two characters are different between any two codes, how many codes can be generated?

Number of permutations of the letters $a, b, c, d$ such that $b$ does not follow $a$, and $c$ does not follow $b$, and $d$ does not follow $c$

Each permutation in permutation group PSL2 consist of fixed points and cycles of equal lengths. Prove or disprove it.

What is the probability that balls left are white?

Find the probability using the formula for the number of permutations with repetitions

League Table so final match day is irrelevant

What is the permutation of choosing the just 3 balls in a pool of 16 balls?

How many $7$-digit numbers can be generated with numbers in $S=\{1,2,3,4\}$ such that all of the numbers in $S$ are used at least once?

Show that a linear map commutes with a symmetric group action

Minimum number of sub groups so that each element is grouped with every other element at least once

Combination of 5 balls

Maximize area spanned by convex hull of a permutation

$4$-element subset of $\{1..6\}$ that includes $1$ or $4$, and $2$ or $5$, and $3$ or $6$?

Number of wrong answers

Number of ways to distribute 13 (out of 52) cards to 4 indistinguishable players.

Trending Questions

Popular # Hahtags

Popular Questions