I've found this online guys
Third class of Emirati cadet pilots starts training | Etihad Airways basicaly it says that the candidates go through a foundation course of maths and physics to bring them to the standard required by Horizon,so makes me think that even if you dont show that you're great mathematician you can still go through,but then,if there's no interview on the first stage,how the hell will they consider you for the second stage if you're not given a chance to show how comited will you be,your personality and bla bla..?confusing....