Total balls = 12. P(Both White) = $^7C_2 / ^{12}C_2 = (7 imes 6 / 2) / (12 imes 11 / 2) = 21 / 66 = 7 / 22$.
कुल गेंदें = 12। P(दोनों सफेद) = $^7C_2 / ^{12}C_2 = (7 imes 6 / 2) / (12 imes 11 / 2) = 21 / 66 = 7 / 22$।