Question

Number of permutations that adhere to precedence rules

score 163 · Answer 1 · 2018-05-14 14:57:46

163

Views

Number of permutations that adhere to precedence rules

Published on 14 May 2018 - 14:57

score 58 · Answer 2 · 2026-04-11 08:07:31

58

Views

How many solutions are to the equation if there's range restriction on some numbers while some numbers must be divisible by $3$?

Published on 11 Apr 2026 - 8:07

score 132 · Answer 3 · 2026-04-12 04:16:41

132

Views

How many ways to distribute?

Published on 12 Apr 2026 - 4:16

score 111 · Answer 4 · 2018-05-14 15:35:02

111

Views

Find the arithmetic mean of all the elements in a set

Published on 14 May 2018 - 15:35

score 543 · Answer 5 · 2018-05-14 16:00:30

543

Views

Permutations of {1, ..., n} that don't contain transpositions

Published on 14 May 2018 - 16:00

score 98 · Answer 6 · 2026-04-06 06:37:14

98

Views

how many 6-digit numbers we can get from the digits of 14145566?

Published on 06 Apr 2026 - 6:37

score 60 · Answer 7 · 2018-05-14 17:24:14

In how many ways can John send $8$ different pictures to his girlfriend in $5$ identical envelopes if each envelope contains at least one picture?

score 240 · Answer 8 · 2026-04-06 06:32:52

240

Views

Maximal number of subsets of $\{1,\cdots,n\}$ with odd cardinals and even intersections

Published on 06 Apr 2026 - 6:32

score 357 · Answer 9 · 2026-03-26 13:52:48

357

Views

What is the asymptotic order of ${2n \choose 0}\sqrt{n}+ {2n \choose 1}\sqrt{n-1} +...+{2n \choose n}\sqrt{0}$?

Published on 26 Mar 2026 - 13:52

score 100 · Answer 10 · 2018-05-14 20:57:54

We have $10$ white and $20$ black balls in box. We take one by one out of it all together $13$ balls. Find the probability that last ball is white.

score 11.9k · Answer 11 · 2026-03-31 17:50:25

11.9k

Views

Factorial of odds

Published on 31 Mar 2026 - 17:50

score 43 · Answer 12 · 2026-04-10 14:31:05

43

Views

Probability of shuffling problem

Published on 10 Apr 2026 - 14:31

score 162 · Answer 13 · 2026-04-11 08:58:29

162

Views

Combinatorial counting Problem on Sets

Published on 11 Apr 2026 - 8:58

score 30 · Answer 14 · 2018-05-15 04:45:29

30

Views

Expected number of $k$-subsets that share at least half their elements

Published on 15 May 2018 - 4:45

score 272 · Answer 15 · 2026-04-10 16:54:05

272

Views

Permutations and combinations for team problem

Published on 10 Apr 2026 - 16:54

List Question

Number of permutations that adhere to precedence rules

How many solutions are to the equation if there's range restriction on some numbers while some numbers must be divisible by $3$?

How many ways to distribute?

Find the arithmetic mean of all the elements in a set

Permutations of {1, ..., n} that don't contain transpositions

how many 6-digit numbers we can get from the digits of 14145566?

In how many ways can John send $8$ different pictures to his girlfriend in $5$ identical envelopes if each envelope contains at least one picture?

Maximal number of subsets of $\{1,\cdots,n\}$ with odd cardinals and even intersections

What is the asymptotic order of ${2n \choose 0}\sqrt{n}+ {2n \choose 1}\sqrt{n-1} +...+{2n \choose n}\sqrt{0}$?

We have $10$ white and $20$ black balls in box. We take one by one out of it all together $13$ balls. Find the probability that last ball is white.

Factorial of odds

Probability of shuffling problem

Combinatorial counting Problem on Sets

Expected number of $k$-subsets that share at least half their elements

Permutations and combinations for team problem

Trending Questions

Popular # Hahtags

Popular Questions