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+1 vote
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in Permutations by (25 points)
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Rank of the word PUBLIC is?

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1 Answer

+1 vote
by (45.1k points)

The rank of the word "PUBLIC" is:

= (4x5! + 4x4! + 0x3! + 2x2! + 1x1! + 0x0!) + 1

= ((4x120) + 96 + 0 + 4 + 1 + 0) + 1

= 480 + 100 + 2

= 582

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