31. In how many different ways can the letters of the word 'LETTER' be arranged? |
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32. How many words with or without meaning, can be formed by using all the letters of the word, 'NARESH' using each letter exactly once? |
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33. How many arrangements can be made out of the letters of the word 'EXCELLENT' ? |
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Those are all planning for any competitive examinations can use this segment to enhance their abilities.