Question

How how many options are there to put the letters AAAABBBBCCCC (4 A, 4 B, 4 C) in a word so that there are at least 2 A next to each other?

score 157 · Answer 1 · 2019-05-24 20:43:23

How how many options are there to put the letters AAAABBBBCCCC (4 A, 4 B, 4 C) in a word so that there are at least 2 A next to each other?

score 245 · Answer 2 · 2019-05-24 21:43:46

245

Views

Probability that the given students are not sitting adjacent to each other

Published on 24 May 2019 - 21:43

score 166 · Answer 3 · 2026-03-25 12:48:50

166

Views

How many numbers with no common divisor are there?

Published on 25 Mar 2026 - 12:48

score 58 · Answer 4 · 2019-06-01 02:45:35

58

Views

Inclusion–exclusion principle, find the number of students

Published on 01 Jun 2019 - 2:45

score 78 · Answer 5 · 2019-06-01 17:36:08

78

Views

How many labeled rooted trees are there on 12 nodes where no node has exactly 4 children?

Published on 01 Jun 2019 - 17:36

score 241 · Answer 6 · 2019-06-18 01:26:19

241

Views

Probability of drawing three different colours without order

Published on 18 Jun 2019 - 1:26

score 1.1k · Answer 7 · 2019-06-18 04:35:13

1.1k

Views

Number of integers $n$ between 1 and 1000 such that the HCF of $n$ and $36$ is 1

Published on 18 Jun 2019 - 4:35

score 78 · Answer 8 · 2019-06-20 13:24:59

78

Views

what do we call the events that one of them is subset of the other

Published on 20 Jun 2019 - 13:24

score 87 · Answer 9 · 2019-06-30 14:33:30

87

Views

Number of lattice points bounded by lines on plane.

Published on 30 Jun 2019 - 14:33

score 70 · Answer 10 · 2019-07-19 07:48:24

70

Views

Probability of not receiving a specific toy in a cereal box, but receiving all others

Published on 19 Jul 2019 - 7:48

score 394 · Answer 11 · 2019-08-02 19:14:58

394

Views

How many pairs $(A_1, A_2)$ of subsets of $\{1,2,\ldots,n\}$ are there such that $A_1 \cap A_2 = \emptyset$?

Published on 02 Aug 2019 - 19:14

score 75 · Answer 12 · 2019-08-10 16:56:36

75

Views

Combinatorics Inclusion-Exclusion problem with permutations and derangements

Published on 10 Aug 2019 - 16:56

score 182 · Answer 13 · 2019-08-10 18:44:36

182

Views

Combinatorics Inclusion-Exclusion problem with matrix

Published on 10 Aug 2019 - 18:44

score 55 · Answer 14 · 2019-08-12 10:45:38

55

Views

Number of graphs on $V = \left \{ 1,2,3,4,5 \right \}$ such that ${\rm deg}(1) ={\rm deg}(2)=2$

Published on 12 Aug 2019 - 10:45

score 67 · Answer 15 · 2019-08-15 10:56:34

67

Views

Show that the number of elements of $X$ belonging to a least $r$ equals to $\sum_{k=r}^n(-1)^{k-r}{k-1\choose r-1}S_k$

Published on 15 Aug 2019 - 10:56

List Question

How how many options are there to put the letters AAAABBBBCCCC (4 A, 4 B, 4 C) in a word so that there are at least 2 A next to each other?

Probability that the given students are not sitting adjacent to each other

How many numbers with no common divisor are there?

Inclusion–exclusion principle, find the number of students

How many labeled rooted trees are there on 12 nodes where no node has exactly 4 children?

Probability of drawing three different colours without order

Number of integers $n$ between 1 and 1000 such that the HCF of $n$ and $36$ is 1

what do we call the events that one of them is subset of the other

Number of lattice points bounded by lines on plane.

Probability of not receiving a specific toy in a cereal box, but receiving all others

How many pairs $(A_1, A_2)$ of subsets of $\{1,2,\ldots,n\}$ are there such that $A_1 \cap A_2 = \emptyset$?

Combinatorics Inclusion-Exclusion problem with permutations and derangements

Combinatorics Inclusion-Exclusion problem with matrix

Number of graphs on $V = \left \{ 1,2,3,4,5 \right \}$ such that ${\rm deg}(1) ={\rm deg}(2)=2$

Show that the number of elements of $X$ belonging to a least $r$ equals to $\sum_{k=r}^n(-1)^{k-r}{k-1\choose r-1}S_k$

Trending Questions

Popular # Hahtags

Popular Questions