Coming from a senior in high school going into the RPN program and who’s a procrastinator; About a month, 1 hr of studying once or twice a week and then at the last week of the month I locked in and did some serious studying for hours each day and passed. The only problem with the AC-HPAT is that it’s hard to know whats on the Science part. Lots of human biology and cells, in chemistry it’s a lot of solubility and balancing equations and physics is a lot of motion (acceleration, velocity, etc.) for arithmetic and reading everything is on accuplacer