How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed? Choose the correct choice from the following answers
A) 2278
B) 3779
C) 5040
D) 2778
E) 2813
Explanation:   The Word LOGARITHMS is contain 10 letters.   To find how many 4 letter word we can find from that = 10 × 9 × 8 × 7 = 5040.   Answer: 5040
<result>C</result>
How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?