Arithmetic Ability
Permutations and Combinations

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Q.

In how many ways can the letters of the word 'MISSISIPPI' be arranged ?

View Answer

Correct choice: D

Explanation:

Total number of alphabets = 10 so ways to arrange them = 10! Then there will be duplicates because 1st S is no different than 2nd S. we have 4 Is 3 S and 2 Ps Hence number of arrangements = 10!/4! x 3! x 2! = 12600
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