# Math Help - Probability of winning in the lottery

1. ## Probability of winning in the lottery

In the lottery there are 5 numbers rolled from 35 numbers and for 3 right quessed numbers there is a third price.
What's the propability that we will win the third price if we buy one ticket with 5 numbers.

2. ## Re: Probability of winning in the lottery

Originally Posted by Serillan
In the lottery there are 5 numbers rolled from 35 numbers and for 3 right quested numbers there is a third prize. What's the probability that we will win the third price if we buy one ticket with 5 numbers.
There are $\binom{35}{5}$ possible tickets from a pool of thirty-five numbers.

There are $\binom{5}{3}\cdot\binom{30}{2}$ possible tickets containing exactly three of the five winning numbers..

3. ## Re: Probability of winning in the lottery

What should you do if you find a winning lottery ticket?

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