Question

Find the number of integer solutions for $x_1+x_2+x_3 = 15$ under some constraints by IEP.

score 5.8k · Answer 1 · 2015-10-16 16:03:57

5.8k

Views

Find the number of integer solutions for $x_1+x_2+x_3 = 15$ under some constraints by IEP.

Published on 16 Oct 2015 - 16:03

score 3.8k · Answer 2 · 2015-10-17 06:52:43

3.8k

Views

How many five-digit numbers do not have three consecutive digits the same?

Published on 17 Oct 2015 - 6:52

score 638 · Answer 3 · 2026-03-10 12:09:09

638

Views

Need help regarding String Derangements using Inclusion/Exclusion

Published on 10 Mar 2026 - 12:09

score 76 · Answer 4 · 2015-10-20 02:47:56

76

Views

Consider counting the number of orderings of the 26 letter English alphabet which do not include the words AMBER, BERTH, or THINK.

Published on 20 Oct 2015 - 2:47

score 859 · Answer 5 · 2015-10-20 19:18:16

859

Views

Combinations, when placing n objects into k boxes, each box has its own size and the order in them doesn't matter?

Published on 20 Oct 2015 - 19:18

score 647 · Answer 6 · 2015-10-21 03:15:28

647

Views

Counting: How many students scored $12$ or above on quizzes $1$ and $2$ but not on quiz $3?$

Published on 21 Oct 2015 - 3:15

score 717 · Answer 7 · 2015-10-22 10:09:13

717

Views

Inclusion-exclusion formula example

Published on 22 Oct 2015 - 10:09

score 1.3k · Answer 8 · 2015-10-26 13:14:44

1.3k

Views

Finding number of integers divisible by 2, 3 or 4 using inclusion-exclusion principle.

Published on 26 Oct 2015 - 13:14

score 48 · Answer 9 · 2015-10-28 07:09:41

48

Views

Deducing the number of divisors if we know their form

Published on 28 Oct 2015 - 7:09

score 3k · Answer 10 · 2015-10-30 03:16:21

3k

Views

How many permutations of letters are in "MATHISFUN" without words MATH , IS , FUN

Published on 30 Oct 2015 - 3:16

score 218 · Answer 11 · 2015-11-03 20:37:28

218

Views

Using the inclusion-exclusion principle to calculate the proportion of numbers divisible by factors

Published on 03 Nov 2015 - 20:37

score 207 · Answer 12 · 2015-11-07 23:05:20

207

Views

Proving the principle of inclusion-exclusion using Möbius inversion

Published on 07 Nov 2015 - 23:05

score 7.1k · Answer 13 · 2015-11-08 18:41:20

7.1k

Views

Couples sitting at a round table

Published on 08 Nov 2015 - 18:41

score 140 · Answer 14 · 2015-11-09 04:59:38

140

Views

The inclusion-exclusion principle for probability and counting.

Published on 09 Nov 2015 - 4:59

score 162 · Answer 15 · 2015-11-10 00:27:31

162

Views

Number of permutations of [2n] where $x_i + x_{i+1} \ne 2n+1$

Published on 10 Nov 2015 - 0:27

List Question

Find the number of integer solutions for $x_1+x_2+x_3 = 15$ under some constraints by IEP.

How many five-digit numbers do not have three consecutive digits the same?

Need help regarding String Derangements using Inclusion/Exclusion

Consider counting the number of orderings of the 26 letter English alphabet which do not include the words AMBER, BERTH, or THINK.

Combinations, when placing n objects into k boxes, each box has its own size and the order in them doesn't matter?

Counting: How many students scored $12$ or above on quizzes $1$ and $2$ but not on quiz $3?$

Inclusion-exclusion formula example

Finding number of integers divisible by 2, 3 or 4 using inclusion-exclusion principle.

Deducing the number of divisors if we know their form

How many permutations of letters are in "MATHISFUN" without words MATH , IS , FUN

Using the inclusion-exclusion principle to calculate the proportion of numbers divisible by factors

Proving the principle of inclusion-exclusion using Möbius inversion

Couples sitting at a round table

The inclusion-exclusion principle for probability and counting.

Number of permutations of [2n] where $x_i + x_{i+1} \ne 2n+1$

Trending Questions

Popular # Hahtags

Popular Questions