A.  17280

B.  4320

C.  720

D.  80

1
Correct Answer :
17280
Explanation :

word SIGNATURE contains total 9 letters.

There are four vowels in this word, I, A, U and E

 

Make it as, SGNTR(IAUE), consider all vowels as 1 letter for now

So total letter are 6.

6 letters can be arranged in 6! ways = 720 ways

Vowels can be arranged in themselves in 4! ways = 24 ways

 

Required number of ways = 720*24 = 17280


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