How many 3 letter words can be formed from the letters of the word CALCUTTA?

How many words can be formed from the letters of the word COMMITTEE?

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 CIRCUMFERENCE.

How many 4 letter words can be formed using the letters of the word 'ARTICLE' such that the words contain A but bot E

How many 4 letter words can be formed using the letters of the word ARTICLE such that the word contains A but not E

How many 4 letter words can be formed using the letters of the word 'ARTICLE' such that the words do not contain A

How many 4 letter words can be formed using the letters of the word ARTICLE such that each word begin with vowel

How many three letter words can be formed using the letters of the word NARESH? (Repetition of letters is not allowed)

How many 5 - letter words can be formed out of the letters of the word KNIFE ,if repetition of letters is not allowed.