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Top Questions
9
votes
Selecting identical and distinguishable balls when the order matters
combinatorics
solution-verification
generating-functions
asked Jul 17, 2021 at 16:56
math.stackexchange.com
7
votes
Simplifying $ 1^5+2^5+3^5+\dots+14^5+15^5 \pmod{13} $
modular-arithmetic
problem-solving
asked Sep 1, 2020 at 8:15
math.stackexchange.com
5
votes
find the number of possible positive integer solutions when the inequality is $a \times b \times c \lt 180$
combinatorics
discrete-mathematics
combinations
problem-solving
asked Jan 26, 2021 at 12:03
math.stackexchange.com
5
votes
find the remainder for $\color{purple}{TETRATION}$ such that $( {^{2021}2021}(\mod13))$
elementary-number-theory
modular-arithmetic
solution-verification
asked Jan 28, 2021 at 18:26
math.stackexchange.com
5
votes
Why are we using combination in probability question when the objects are identical?
probability
combinatorics
probability-theory
soft-question
combinations
asked Nov 3, 2021 at 6:08
math.stackexchange.com
5
votes
Distributing $10$ indistinguishable cars, $12$ indistinguishable balls, $14$ indistinguishable teddy bears to $3$ children, each have exactly $7$ toys
combinatorics
discrete-mathematics
problem-solving
generating-functions
balls-in-bins
asked Nov 10, 2021 at 21:19
math.stackexchange.com
5
votes
Can negative integers be relatively prime?
elementary-number-theory
terminology
asked Jul 4, 2020 at 15:30
math.stackexchange.com
Top Answers
12
A man desires to throw a party for some of his friends. In how many ways can he select 8 friends from a group of 14 friends?
math.stackexchange.com
6
Possible arrangements of the letters of the word "Polyunsaturated" in which the vowel order is preserved
math.stackexchange.com
5
How many possible seat arrangements are there?
math.stackexchange.com
5
How many ways are there to go from $A$ to $C$ and come back from $C$ to $A$
math.stackexchange.com
5
What is the number of non-increasing 4 digit numbers?
math.stackexchange.com
5
Number of ways to visit each of $8$ zoos at least once and at most $3$ times
math.stackexchange.com
5
Number of ways to distribute $n$ identical balls into $k$ identical boxes such that no box contains more than $m$ balls?
math.stackexchange.com
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