The total number of permutations of 4 letters that can be made out of the letters of the word

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The total number of permutations of 4 letters that can be made out of the letters of the word EXAMINATION is:
(a) 2454 (b) 2436 (c) 2545 (d) None

Permutation and Combinations

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2454..class me karaya tha Sir..aaj bhi answer yaad hai iska...
Sir Yaad aati class ki bahut 😢

nobita
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Good Question. Out of 11 letters if All different letters is 8. Then answer is always 2454.
e.g., COMBINATION=
[ O² I² N² ] C M B A T

sawanupadhyay
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No idea what he's talking about; nor could follow at all

tonybarfridge