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Grade 12th passAlgebra

How many words can be formed with letters of word LEXICOGRAPHY if the order of vowels do not change and no two vowels can occupy consecutive places ?
  1. 5080320
  2. 11880
  3. 19958400
  4. 1680

Profile image of Saurabh Sharma
10 Years agoGrade 12th pass
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1 Answer

Profile image of SAIMANIKANTA
10 Years ago
If the vowels AEIO as 1 unit i.e., i!
And the leaving terms LXCGRPHY is 8!
then the words formed is 9!+4!=362904 words

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