The letter of word COCHIN in alphabetic order are C, C, H, I, N, O. Fixing first letter C and keeping C at second place, rest 4 can be arranged in 4! ways. Similarly thewords starting with CH, CI, CN are 4! in each case. Then fixing first two letters as CO next four placeswhen filled in alphabetic order give the word COCHIN. Number of words coming before COCHIN are4 × 4! = 4 × 24 = 96