The total possibility outcome is $80
Here, we want to get the total possibility outcome
From the question, each of the 200 have an equal chance
Now, out of the 200, we can only have a first, a second and a third
The probability that an entry wins first price would be 1/200 , so as the second price and the third
So, we have the total possibility outcome as follows;
![\begin{gathered} ((1)/(200)*10,000)\text{ + (}(1)/(200)*5000)+\text{ (}(1)/(200)*1000) \\ \\ =\text{ 50 + 25 + 5 = \$80} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/hyc1v3461esses66dhzkd66f5ri4wnnq2m.png)