You have shared an amazing post and from your post it looks like you are a teacher and you teach many students and teach them a lot and if they don't understand something, you teach them in different ways. I try to explain again and again, which is very good. I don't know that I am an academy teacher and I also try to explain to the children in different ways. By the way, your post is very good and you have cleared every point very well. Thank you very much. I wish you all the best for the competition.