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Ace see that the question reads "2,3 and 4" people and if we take 2,2,2,3 that and condition is violated as it does not include 4.
If instead another question has "2,3 or 4" then we have to include two more cases to earlier answer (ie 720). They are (2,2,2,3) and (3,3,3). But for this question the answer is 720 only.
Here i would like to tell all of you to please give due emphasis to words in P&C, because a different perception of question will give you a different answer
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Moderation Team
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