Quote:
Originally Posted by Ferra
I think the article point is...mpg is an "inconvenient" tool
Most people think in-terms of the distance they need to travel...(i.e. km or miles), and not how many gallons or liter they need to use..
This means the distance should be in the denominator...(becoz people are more used to multiplication than division)
MPG uses the distance in the numerator and gas volume in the denominators....which makes calculating how much gas/$ you need to spend to in order to travel your annual 20,000 much more difficult.
Think of a supermarket that list all their groceries in lb/$ (instead of $/lb). It will make shopping and budgeting for prices so much more difficult. (Because we think of how many lbs of beef we want to buy first, instead of how much $$ worth of beef we want to buy)
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I think that's a good analogy, my counter would be, I don't care if its $/lb or lb/$, what I care about is the difference week on week, or shop to shop, it's a comparison, as opposed to an absolute calculation tool