Find the number of permutations of the word / "helicopter./". A. 3,628,800. B. 1,814,400. C. 328,800. D. 452.

Question

Mathematics

Eva Morse

16 January, 10:31

Find the number of permutations of the word / "helicopter./". A. 3,628,800. B. 1,814,400. C. 328,800. D. 452.

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Abagail Mooney · Answer 1

Permutation is a mathematical operation that is concerned about the ordered of the elements. The word "helicopter" has 10 elements or letters. Only 2 e's are repeated. Hence, the permutation is equal to 10! / 2!. The numerical value of this is equal to 1814400. The answer is letter B.