A study of laws or mathematics did never count to be anything to achieve easily at University Cologne from 1980 to 1990. For Law: The median of achievement of students participating were the barrier to have passed. For Mathematics, achieve a level of 50% of weekly written exercise, otherwise you can't take the exam. Achieve 50% of the exam to pass it. If then the amount of students, who passed, were lower than 20% the level to pass might get corrected to only need 40% of the exam, even if than still only 30% will pass the exam.
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