How many different sets of 6 and 7 different numbers can we list out from 11,13,18,19,19,20,23,25?
92772
How many different sets of $6$ different numbers can we construct from $11, 13, 18, 19, 19, 20, 23, 25$?
142135
A number with 6 distinct digits which get multiplied by 5 if we move the last digit to front
153370
Number of different partitions of N
18881
Number of elements of order $7$ in a group
154561
Finding number of ways of selecting 6 gloves each of different colour from 18 gloves?
107027
Number of combinations and permutations of letters
25283
Intermediate Text in Combinatorics?
115209
Elementary formula for permutations?
9971
enumerative combinatorics,In how many ways (as a function of n) can one choose a composition α α of n
13260
Choosing $101$ numbers from $\{1, 2, \dots , 200\}$.
132041
Numbers which cannot be formed
129492
Choosing $15$ out of $100$ whole numbers with difference of any $2$ divisible by $7$
65802
The number of 5-digit numbers such that their sum of digits is even is?
117162
How many ways can the 10 A's be distributed?
40763
Possible orders of permutations of $11$ symbols
13860
IMO/1981 - Combinatorics
36486
Finding the total number of set-bits from 1 to n