Although you’ve probably heard that the human brain is complicated, complex and unique, this weird, simple math trick proves that most brains usually react the same way and come up with the same answer. Well, it’s not really a trick, more like a little psychology at play.
Only 2% of people answer it differently, which means almost everyone come up with the same answer. Don’t write anything down or try to cheat and look ahead, it works best if you work out everything in your head as you go.
