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Class 11MathematicsPermutations and CombinationsCombinationsExpert
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From the letters of the word MISSISSIPPI, (4) letters are selected, and identical letters are not distinguished. How many distinct selections are possible?

Answer and explanation

Correct answer: (21)

Using the limits (M\le1), (I\le4), (S\le4), and (P\le2), the total selections are (21). For repeated letters, count bounded integer solutions.

Related tags

Class11CombinationsWord-SelectionRepeated-LettersExpertPermutations And CombinationsMathematicsClass 11 Mcq
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