[jeza]

In Australia 10pc is the largest serving of chicken nuggets you can get at McDonalds, with the other sizes being 3 or 6 (I don't know the prices because they're not listed on their website and I don't often go to McDonalds; https://mcdonalds.com.au/menu/chicken-mcnuggets). Could this be the key though, if 10 is the largest here, then that suggests it is more than what most people can really eat. Having 20 at the same price might just be a decoy to make McDonalds look generous as they'll give you 20 for the same price if you really want (but you don't really want). Might be good value to get 20 if you're sharing but then you'd probably be tempted to get drinks for each person with a most certainly high margin.

[grecy]

As an Aussie living in North America I can tell you that portion sizes over here have absolutely zero to do with what people can actually eat.

Even though they've eliminated Super Size (since the movie) the large coke at McDonald's USA is still massively bigger than the large in Australia

More is more.

[batiudrami]

Something it took me a week or so to realise in the US is that at restaurants, no one really expects you to eat the entire meal - portions are such that you couldn't possibly go home hungry, which seems to lead to a lot of wastage.

Restaurant portions are much smaller in Australia (as you'd know), but generally people will eat the entire plate, and maybe an entrée (starter) too.

This doesn't really apply to fast food, though - since if you want less food you can just order a small. My girlfriend and I would order two burgers and share a small chips & drink in the US because the portions were so large.

[nostromo]

BuzzFeed did a short video on this and the US and Australian McDonalds large are very similar.

http://i.imgur.com/UJMBMEA.png

It is BuzzFeed though -- so who knows.

[hussong]

FWIW, in Germany they sell 4, 6, 9, and 20 pieces.

[dexterdog]

Germans are better at math so you have to throw more curve balls.

[kuschku]

But the largest drink size here is 40cl, which is less than a pint.

[Oletros]

Here in Spain it is the same, 4, 6, 9 and 20 pieces