My sons and their neighbor friends were hanging around the house playing monopoly etc. a couple of days ago. I wrote up a small math question to see if they would work it out at their age. They are all Chinese and moved here in the last 2 to 3 years.
One of them answered it before I even wrote a)
All of them answered it correctly almost immediately.
I thought I might send it to our Thai friends, all of whom are Thai university educated. I sent it to 4 of them.
None of the 4 university educated Thais could do it.
If you know both of these groups, send it to them and see how they get on with it.