Elitmus
Exam
Category
How many 3-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?
Options
1) 720
2) 420
3) 5040
4) None of these
Read Solution (Total 2)
-
- 10c3*3!
10c3 for selecting 3 characters nd 3 factorial for arranging them - 9 years agoHelpfull: Yes(2) No(1)
- ans:1) 720
sol : (10)*9*8
720 - 9 years agoHelpfull: Yes(2) No(0)
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