A class consists of 100 students, 20 of them are girls and 80 boys; 20 of them are rich and remaining poor; 40 of them are fair complexioned. The probability of selecting a fair complexioned rich girl is\nOptions:\n(A) 2/125\n(B) 1/59\n(C) 1/56\n(D) 1/54\n(E) 1/53 Now, let's think a bit. Some random thoughts:
User
The probability of selecting girl is: 20/100 = 1/5\nThe probability of selecting rich is: 20/100 = 1/5\nThe probability of selecting fair complexioned is: 40/100 = 2/5\nThree are independent;probability of rich and fair complexioned girl is:\n(1/5) Ã—(1/5) Ã— (2/5) = 2/125
The final answer: (A).
Assistant