How many words can be formed from the letters of the word CIRCUMFERENCE.

How many words can be formed from the letters of the word 'COURTESY' whose first letter is C and the last letter is Y?

How many words can be formed from the letters of the word, TRIANGLE? How many of these will begin with T and end with E ?

How many words can be formed from the letters of the word SERIES, which start with S and end with S?

How many words can be formed from the letters of the word SUNDAY? How many of these begin with D?

How many words can be formed form the letters of the word DAUGHTER so that The vowels always come together? The vowels never come together?

How many words can be formed with the letters of the word 'FAILURE' in which consonants may occupy even positions?

How many words can be formed out of the letters of the word, ORIENTAL, so that the vowels always occupy the odd places?

How many words can be formed out of the letters of the word, ARTICLE, so that vowels occupy even places?

How many words can be formed with the letters of the word 'NUMBERS', if all consonants are always together?

(i) How many words can be formed with the letters of the word 'FAILURE', if A and F are always together? (ii) In how many ways can 6 question papers be arranged if the best and worst papers are always together?