What is the total number of possible 5-letter arrangements of the letters D, I, S, C, and O, if each letter is used only once in each arrangement?
1 Answer
Dec 27, 2015
If you can only use each letter once and since each letter is distinct , there are 120 possible arrangements .
Explanation:
There are 5 ways to choose the first letter. Next, there are 4 ways to pick the second letter. Similarly, there are 3, 2, and 1 way to pick the third, fourth and fifth letters, respectively.
In total,
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