How many words are formed from draught slots of order of vowels do not change 7 no two vowels occupy consecutive places?
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Solution:
The word is "D, R, A, U, G, H, T, S, L, O, T, S".
The vowels are "A, U, O".
A U O, D, R, G, H, T, S, L, T, S
Here, 3 vowels can be arranged in 8 ways.
Total number of words = (9!/4)×8
= 2*9!
Hence, the number of words is 2*9!.
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