The staff had eaten a total of 19 x 2 = <<19*2=38>>38 doughnuts.

So, 50 - 38 = <<50-38=12>>12 doughnuts are left.

# Answer

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Question:
During a staff meeting, 50 doughnuts were served. If each of the 19 staff ate 2 doughnuts, how many doughnuts are left?
Answer:
Let's think step by step.

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