Mathematics, 18.06.2021 01:10, abbz13

Lớp 12a có 40 học sinh, trong đó có 25 học sinh nam và 15 học sinh nữ. Hỏi có bao nhiêu cách chọn ra một nhóm gồm 5 học sinh nữ

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Lớp 12a có 40 học sinh, trong đó có 25 học sinh nam và 15 học sinh nữ. Hỏi có bao nhiêu cách chọn ra...