Just in time for the spring semester, Seminary Survival Guide has some helpful infographic on surviving the reading demands of graduate school here. I question whether the 200 pages per week per course number for at least master's level students is correct. But I suppose this might vary quite a bit from class-to-class and institution-to-institution.
One other point needs to be made. One has to be careful that if the professor requires you to report your reading, then integrity demands that you accurately report what you have read. Some professors will allow skimming, others will not.
That being said the information is helpful.