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Maths Exercices
Variations without repetition
n = m = Vn,m=
Variations with repetition
n = m = VRn,m=
Permutations
n = Pn =
Circular permutations
n = (n-1)!=
Combinations without repetition
n = m = Cn,m=
Combinations with repetition
n = m = CRn,m=

How many palindromic numbers can be formed using 8 figures? A palindromic number is one in which the set of figures in the first half of the number are repeated in reverse order in the second half. eg 1234321

Solution: