How many words, with or without meaning can be made from the letter of the word FRIDAY, assuming no letter is repeated if 3 letters are used at a time?
110
120
150
180
The word FRIDAY has 6 different letters.
The number of 3-letter words that can be formed from the letters of the word FRIDAY, without the repetition of the letters, is the permutation of 6 different objects taken at a time is,
Thus, the required number of ways to form a 3-letter word is,
Therefore, the number of ways is 120 ways.
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