From the details that we have here we can say that the amount of vinegar that is mixed with 1 milliliter of soy sauce is 0.67
the vinegar is given as 100
the soy sauce is given to be 150
The ratio would be
100 / 150
= 0.67
hence we can say that the amount of vinegar that is mixed with 1 milliliter of soy sauce is 0.67
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