ASIAN POWER!
Let's say.....
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@Concrete_Angel lol np
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This guy is a computer scientist and it he has a amazing mind
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@GirlNextDoor Who?
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It also can be done with permutations.
Personally i think it's easier to make 5P5 - (4P4 x 2) = 120 - 48 = 72 also -
@davitchen Wow that's great man.
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@bunyonb Well thanks, have you been studying, or is it just curiosity?
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@davitchen Studying. I need to understand it and other similar problems for exam prep.
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@bunyonb Im also doing exam in the next week :) I'll have to repeat. So it was helpful that post ahahaha
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@davitchen You are welcome lol
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You need to learn to use factorials
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@Concrete_Angel well looks like we have a genius here.
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I don't know anything about any of these formulae, but I make it 72.