SOLUTION: A store sold 10 tickets, 5 of which will win prizes if a person buys 3 tickets find the probability that 2 of his tickets will win prizes ? How can I solve this using combination?

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Question 1031423: A store sold 10 tickets, 5 of which will win prizes if a person buys 3 tickets find the probability that 2 of his tickets will win prizes ? How can I solve this using combination?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
10 tickets: 5 winning, 5 not winning
Chose 3
P(2 are winning) = %285C2%29%285C1%29%2F%2810C3%29