How many distinct words can be formed by permuting the letters of the word abracadabra?
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The word 'abracadabra' contains following letters: 'a' – 5 times, 'b' – 2 times, 'r' – 2 times, 'c' – 1 time, 'd' – 1 time. distinct choices. choices because 5 from the total of 11 free position are already filled with 'a'.
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