Arithmetic Ability
Permutations and Combinations

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Q.

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?

View Answer

Correct choice: D

Explanation:

LOGARITHMS' contains 10 different letters. Required number of words = Number of arrangements of 10 letters, taking 4 at a time. = 10P4 = 5040.
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