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bola merah = 5
bola putih = 4
banyak bola = 9
diambil 3
peluang 3 bola merah = 5C3 / 9C3 = 10/84 = 5/42
Pengambilan bola.merah 5c3 = 10. Jadi peluang terambilnya bola merah 10/84 = 5/42