Twenty bottles of oil is equal to 200 mL x 20 = <<20*200=4000>>4000 mL.

Since 1 liter is equal to 1000 mL, then the store owner had 4000/1000 = <<4000/1000=4>>4 liters of oil.

# Answer

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Question:
A store owner repacked his oils into 200 mL bottles. He was able to make 20 bottles. How many liters of oil did the store owner have?
Answer:
Let's think step by step.

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A store owner repacked his oils into 200 mL bottles. He was able to make 20 bottles. How many liters of oil did the store owner have?
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