George had $100 and he spent $24 on a shirt, so he had $100 - $24 = $76 left.
He also bought a pair of socks and had $65 left, so the pair of socks must have cost $76 - $65 = $11.
Therefore, a pair of socks cost $11.
#### 11
The answer is: 11
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
George had $100. He bought a shirt for $24 and he also bought a pair of socks. Then he had $65 left. How much is a pair of socks?

### Answer:
