. I bought 25 guitar picks and 25 strings. Strings cost $1 more than picks. I spent $50 on both. Find the cost of one guitar string?

Let's assume the cost of one guitar pick is x.

Therefore, the cost of one guitar string would be x + $1.

Since you bought 25 guitar picks, the total cost of the picks would be 25x.
Similarly, the total cost of the strings would be 25(x + $1).

We are given that the total cost of both picks and strings is $50.
So, we can write the equation as:
25x + 25(x + $1) = $50

Expanding the equation, we have:
25x + 25x + 25 = $50

Combining like terms, we get:
50x + 25 = $50

Subtracting 25 from both sides, we have:
50x = $50 - $25
50x = $25

Dividing both sides by 50, we get:
x = $25 / 50
x = $0.5

Thus, the cost of one guitar pick is $0.50.
And, the cost of one guitar string is $0.50 + $1 = $1.50. Answer: \boxed{1.50}.