LIC AAO: QUANT QUIZ

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1) In a lottery, there are 5 prizes and 10 blanks in tickets. A ticket is drawn at random. What is the probability of getting a prize? 1) 1/7 2) 2/7 3) 1/3 4) 2/3 5) None of these 2) In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that one girl and two boys are selected is  1) 4/25 2) 25/117 3) 1/50 4) 21/46 5) None of