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    Permutations and Combinations Calculations

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    12 students are split 5 in room A, 4 in room B, and 3 in room C. How many different ways can this happen.

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    Number of ways we can choose 5 students out of 12 = 12C5 = 792
    <br>Now since 5 students have already been allocated to room A, we want to ...