How many words (with or without dictionary meaning) can be made from the letters in the word MONDAY, assuming that no letter is repeated, if

4 letters are used at a time?

Given: the word is ‘MONDAY.’


Total number of letters in the word = 6


To find: possible number of four-letter words can be made using the letters of the word ‘MONDAY.’


Formula used:


Number of arrangements of n things taken r at a time = P(n, r)



Total number of arrangements


= the number of arrangements of 6 things taken 4 at a time


= P(6, 4)





= 6 × 5 × 4 × 3


= 360


Hence, the total number of four-letter words can be made by letters of the word ‘MONDAY’ = 360


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