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;
[tex]\begin{gathered} (\frac{1}{200}\times10,000)\text{ + (}\frac{1}{200}\times5000)+\text{ (}\frac{1}{200}\times1000) \\ \\ =\text{ 50 + 25 + 5 = \$80} \end{gathered}[/tex]