1.

How many necklaces of 12 beads can be made from 18 beads of various colours ?

A. [118 x 13!] / 2
B. [110 x 14! ] / 2
C. [119 x 13!] / 2
D. [110 x 12!] / 2
E. None of the above
Answer» D. [110 x 12!] / 2


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