A+B & A+C are greater than B+C... quite logic, isnt it?
UAE + SA = 22 (11 avg)
UAE + O = 40 (20 avg)
SA + O = 46 (23 avg)
So because UAE > SA, then the third combination doesn't quite make the cut.
Singapore-Malaysia: 26 (Brunei and Malaysia do border each other and score 26.5);
Australia-New Zealand: 26.5;
Japan-South Korea: 32.
You can see why Singapore (5) and Brunei (6) didn't want to be part of Malaysia (47).
Also are we Including the French Guiana border, or is that just not very rich countries per capita. Also assuming you don't include the dubious Qatar-UAE border. Kuwait Kind of surprised me and so did not seeing Sweden-Finland, guess that is for the same reason there is no Saudi Arabia-Oman, because Norway is like UAE, it is the largest out of those three
This beats or equals 29.4% of test takers
I managed to stupidly miss the United Arab Emirates – kept typing Qatar, Bahrain, Kuwait and Oman repeatedly.