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mr Goodwill [35]
3 years ago
6

How many permutations exist of the letters a, b, c, d taken four at a time?

Mathematics
1 answer:
inessss [21]3 years ago
3 0
There are 24 permutations.

The number of permutations of 4 objects taken 4 at a time is given by
4!/(4-4)! = 4!/0! = 4!/1 = 4! = 24
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