जॉइन Examsbookउत्तर : 1. "60"
How many words can be formed with or without meaning by using three letters out of k, l, m, n, o without repetition of alphabets.5
प्र: How many words can be formed with or without meaning by using three letters out of k, l, m, n, o without repetition of alphabets.
- 160true
- 2120false
- 3240false
- 430false
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उत्तर : 1. "60"
व्याख्या :
Answer: A) 60 Explanation: Given letters are k, l, m, n, o = 5 number of letters to be in the words = 3 Total number of words that can be formed from these 5 letters taken 3 at a time without repetation of letters = 5P3 ways. ⇒ 5P3 = 5 x 4 x 3 = 60 words.