Number of tickets = 10,000
Number of prize bearing tickets = 10Â Number of non-prize bearing tickets = 10000 - 10 = 9990
Three tickets are bought              n(S) =Â
Event A: None of the three tickets is prize bearing.              P(A) =Â
 Probability of not getting a prize, when three tickets are bought
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In a lottery, there are 35 tickets in all, 10 bearing prize numbers and 25 are blanks. A lady draws 2 tickets at random. What is the probability that she will win one prize.
A bag contains 3 red balls bearing numbers 1, 2, 3 (one number on one ball) ; and two black balls bearing numbers 4 and 6. A ball is drawn, its number noted and the ball is replaced in the bag. Then another ball is drawn and its number noted. Find the probability of drawing:
(i) 2 on the first draw and 6 on the second draw.
(ii) a number ≤ 2 on the first draw and 4 on the second draw.
(iii)Â a total of 5.