How u revise 400 page in 5 hours?
download all the text in usb then drill it into the centre of your brain
watch youtube videos in 2x speed covering all the main headings. should be enough to get you by.
It's like they say, devour books and you'll be a wiser person, but devouring page by page doesn't seem like a good choice, because they don't taste that good, so I recommend putting everything in the blender and making a smoothie