Ten different letters of a word are given. Words with five letters are formed from these…
Mathematics · JEE Main · NTA Exams — Permutations and Combinations
Ten different letters of a word are given. Words with five letters are formed from these given letters. Then, the number of words which have at least one letter repeated, is
- 69760
- 30240
- 99748
- None of these
Answer
(A) 69760
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