It depends on the individual. If you have enough time, two weeks is enough. You should read more books and do more problems. You basically don't need a foundation to write the textbook for this exam. Read step by step, chapter by chapter, and do it against the supporting exercises. I can give you a suggestion. The first exam should be submitted to the foundation and the second exam to the business, so that the teaching materials can be fully utilized. In case one course fails in May, you have to buy new textbooks. 92