48 is the sum of 24 and Joe's score. What is Joe's score?

To find Joe's score, we can set up the equation based on the information provided:

\[
24 + \text{Joe's score} = 48
\]

To solve for Joe's score, we subtract 24 from both sides:

\[
\text{Joe's score} = 48 - 24
\]

Calculating the right side gives:

\[
\text{Joe's score} = 24
\]

Therefore, Joe's score is **24**.