In a bar in Scotland, two sizes are listed for the beer - pint and half. I assume that half is half pint, however for all beers the price for "half" doubled is less then the price for a pint (say pint is 5.50, while half is 2.30). So it does not make sense to me. What does half mean in this context? Is it half pint? If so, what is the reason why two halfs cost less than a whole pint? Is this something standard here?
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