Q. 11 A5.0( 2 Votes )

# How many words (with or without dictionary meaning) can be made from the letters in the word MONDAY, assuming that no letter is repeated, if4 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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