A - drawing a girls name at first P(A) = 2/(2+9) = 2/11 B - drawing a boys name in second drawing if first drawing was a girls name P(B) = 9/10 C - drawing a girls name firstly and a boys name secondly P(C) = P(A) * P(B) = 2/11 * 9/10 = 9/55 ans: 9/55
