# How do you answer question 25?

#### Explanation:

Here's an approach to question $25$.

Notice that winning multiplies Henry's holdings by $\frac{3}{2}$, while losing multiplies his holdings by $\frac{1}{2}$.

So it does not matter in what order he wins and loses - the result will be:

$5120 * (3/2)^5*(1/2)^5 =$5120 * 3^5/2^10 = $5120 * 243/1024 =$1215

Ouch!