Five letters F, K, R, T and V one in each were purchased from a plastic warehouse. How many ordered pairs of letters, to be used as initials, can be formed from them?

Four letters E, K, S an V, one in each, were purchased from a plastic warehouse. How many ordered pairs of letters, to be sued as initials, can be formed from them?

Four letters E,K,S an V, one in each,were purchased from a plastic warehouse.How many ordered pairs of letters,to be sued as initials,can be formed from them?

Four alphabets E, K, S and V, one in each were purchased from a plastic warehouse. How many ordered pairs of alphabets, to be used as initials, can be formed from them ?

how many 4 letter words can be formed from the word MORADABAD?

How many 4 letter words can be formed from the word MATHEMATICS?

Seven cards each bearing a letter , can be arranged to spell the word 'DOUBLES' .How many three - letter code- words can be formed from these cards ?

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

How many different 5-letter words can be formed from the word ORANGE using each letter only once?

How many different words are formed if the letters R is used thrice and letters S and T are used twice each?