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How many permutations exist of the letters a,b,c,d taken three at a time? a.24 b.12 c.4

Ralph Lopez

in Mathematics

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Annie Barnes on February 26, 2018

4P3 = 24In a permutation of the order of business.You can also think of it this way; you have 3 spots to fill,the first point has 4 items to choose from. Now there are only 3 items on the left to select the next point. There are only 2 items on the left for the third place, so4 * 3 * 2 = 24Letter A


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