Questions
The number of ways in which you can put five beads of five different colours to form a necklace is:
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Correct option is A
Number of ways of putting beads in a necklace is 4! But clockwise arrangement abcde and anticlockwise arrangement aedcb are not really different, for, the arrangement abcde gives rise to arrangement aedcb if the necklace is turned over.∴ required number of ways =12(4!)=12Similar Questions
Three boys and three girls are to be seated around a circular table. Among them the boy X does not want any girl as a neighbour and girl does not want any boy as a neighbour. The number of possible arrangement is:
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