List questions from inclusion-exclusion

Published on 25 Mar 2026 - 8:10

82

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Which finite groups have the property that the size of an intersection of conjugates of a maximal subgroup depends only on their number?

Published on 31 Mar 2020 - 2:42

65

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How to calculate number of perfect matchings?

Published on 23 Feb 2026 - 6:38

1.4k

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counting allowable/admissible paths on a grid with obstacles

Published on 25 Mar 2026 - 20:52

48

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How many integers are there less than n with at least k odd integer?

Published on 05 Apr 2020 - 9:11

227

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How many numbers between 1 and 10000 are multiples of 4 or 5 or 7? How many of those numbers are also multiples of 3?

Published on 08 Apr 2020 - 13:17

82

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Difficult permutation and inclusion-exclusion principle problem.

Published on 10 Apr 2020 - 5:33

164

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Number of ways to color in a $2\times5$ grid

Published on 11 Apr 2020 - 2:14

45

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Inclusion-Exclusion Probability Question Sample SOA Exam P

Published on 13 Apr 2020 - 0:16

50

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General Formula for solutions of the restriction system $x_1+x_2+\cdots+x_k=n$

Published on 15 Apr 2020 - 20:26

78

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Find another expression for the formula

Published on 17 Apr 2020 - 18:06

61

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Inclusion exclusion - probability

Published on 18 Apr 2020 - 12:32

19

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Inclusion exclusion problem multiple choice and union

Published on 18 Apr 2020 - 14:30

170

Views

Divide $n$ couples to $n$ different rooms

Published on 21 Apr 2020 - 18:54

201

Views

Divide $n$ people into $k$ teams with restrictions

Published on 22 Apr 2020 - 12:48

List Question

What's the probability for a 14-card hand to contain at least one full-house?

Which finite groups have the property that the size of an intersection of conjugates of a maximal subgroup depends only on their number?

How to calculate number of perfect matchings?

counting allowable/admissible paths on a grid with obstacles

How many integers are there less than n with at least k odd integer?

How many numbers between 1 and 10000 are multiples of 4 or 5 or 7? How many of those numbers are also multiples of 3?

Difficult permutation and inclusion-exclusion principle problem.

Number of ways to color in a $2\times5$ grid

Inclusion-Exclusion Probability Question Sample SOA Exam P

General Formula for solutions of the restriction system $x_1+x_2+\cdots+x_k=n$

Find another expression for the formula

Inclusion exclusion - probability

Inclusion exclusion problem multiple choice and union

Divide $n$ couples to $n$ different rooms

Divide $n$ people into $k$ teams with restrictions

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