If each staff ate 2 doughnuts, then a total of 19 x 2 = 38 doughnuts were eaten.
If there were originally 50 doughnuts, then 50 - 38 = 12 doughnuts are left.
#### 12
The answer is: 12
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
During a staff meeting, 50 doughnuts were served. If each of the 19 staff ate 2 doughnuts, how many doughnuts are left?

### Answer:
