|A) 129780||B) 1587600|
|C) 35600||D) None of these|
H L C N T A U I O
L N A I
There are total 131 letters out of which 7 are consonants and 6 are vowels. Also ther are 2L's , 2N's, 2A's and 2I's.
If all the consonants are together then the numberof arrangements = . But the 7 consonants can be arranged themselves in ways.
Hence the required number of ways = = = 1587600