Final answer:
The question seems to contain a typo or misunderstanding, as 'hillas v arcos' is not a recognized term in mathematics for calculating a ratio. For mathematics, a ratio is the relationship between two numbers, but it's also possible the question refers to a legal case, for which more context is needed.
Step-by-step explanation:
The question 'What is the ratio in hillas v arcos?' does not provide a clear context, but it seems like there might be a misunderstanding or typo. Typically, ratios are a part of mathematics and refer to the quantitative relationship between two or more numbers indicating how many times the first number contains the second. However, 'Hillas v Arcos' sounds like it could be a legal case, which would not involve calculating a ratio.
If this is a mathematics question and 'hillas v arcos' refers to two quantities for which a ratio is to be calculated, please provide the respective values of Hillas and Arcos for a proper calculation of the ratio. If, on the other hand, this is a legal case and you're looking for details about Hillas v Arcos, please provide additional context so that the question can be addressed accurately within a legal framework.