Combinations Problem - Arranging 2n People in n Rooms with exactly 2 people in each room.
43076
Chess tournament combinatorics
95939
Combinations of 6 students among 20, at least one male
128051
Calculating possible option of switching pairs in group
27427
Arranging numbers from $1$ to $n$ such that the sum of every two adjacent numbers is a perfect power
149010
Finding Combinations to the provided Sum value
147766
Sum of Permutations from 0 to n
11296
The Monty Hall problem
90572
Seating of $n$ people with tickets into $n+k$ chairs with 1st person taking a random seat
51981
What is the probability of n people from a list of m people being in a random selection of x people from a list of y people?
101758
combinatorics circular arrangement problem
38037
A problem with my reasoning in a problem about combinations
144025
Number of Solutions in this Number Puzzle
127311
Challenging probability problem
142180
There are 'n' candies and 't' boxes. Find the number of ways to place the candies in the boxes for each of the conditions (given in the problem).
14979
Making all possible combinations of a list
122539
Arrange $m$ people in $m+r$ seats around a round table.
79493
Probability of 3 people in a room of 30 having the same birthday