So I found the answer. It says,
Let's assume we don't stop picking until all of the chips are picked. To satisfy this condition, we have to arrange the letters: W, W, R, R, R such that both W's appear in the first 4. We find the number of ways to arrange the white chips in the first 4 and divide that by the total ways to choose all the chips. The probability of this occurring is 4C2/5C2 = 3/5
The question isn't very clear but I'll answer based on my understanding. So Hunter spent 1/4 of his money and an additional 7 dollars for something else. He has 23 dollars left. And you want to find how much he had in the beginning. If this is the question, the answer's below.
You should make an equation with the variable x for how much he had at first. So it would be \(1/4x + 7 = 23\)
Solving for the equation, you get