उत्तर (C) आहे
दोन डायस फिरवल्यावर 7 होण्याची संभाव्यता 6/36 = 1/6 आहे
बॉल किंवा पांढरा किंवा लाल असल्याची संभाव्यता = (2/9) + (4/9) = 6/9 = 2/3 आहे
एक बॉल पांढरा आणि एक काळा असल्याची संभाव्यता = (5C1 * 7C1)/12C2 = 35/66 आहे
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