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27-09-2016
Mathematics

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Hong has been given a list of 6 bands and asked to place a vote. his vote must have the names of his favorite and second favorite bands from the list. how many different votes are possible?

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27-09-2016

This requires us to find the number of permutations of 6 different bands taken 2 at a time:
[tex]6P2=\frac{6!}{(6-2)!}=30\ different\ votes.[/tex]

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