The number of words which can be formed out of the letters of the word ARTICLE, so that vowels occupy the even place is
A. 1440
B. 144
C. 7!
D.
The answer is the option (b)
Vowels in ARTICLE are A,I,E and consonants are R,T,C,L . Vowels occupy 3 even places in 3! Ways and in remaining 4 places 4 consonants can be arranged in 4! Ways
Total number of words =