How long should I have to study to get 5 on AP World History?

<p>Hello!
I am currently in 10th grade, and I listened to World History class, that is like half AP and half regular class...
(could you imagine it? It is like you are learning the basic material of World History, but you do not learn in depths.) </p>

<p>My school decided to open an AP World History class (three semesters long) next semester, so students could take AP World History in 2015.</p>

<p>I realized, however, most of the students in my grade are trying to take the AP World History exam in 2014. This matters to me, because the three-semester-long AP World History could be canceled,,,</p>

<p>Anyways, so I wonder, assuming I have a really basic knowledge of World History, could I began studying from now on and get a 5 on AP World History?</p>