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Scenario: You are giving students several learning quizzes throughout the semester.  Each quiz has a fixed number of multiple-choice questions.  Each question is worth 1 point.
Students can attempt these quizzes unlimited number of times (within a specific time period) in preparation for the midterms and finals.  While you do not particularly care about students overall grade for each quiz you would like to encourage them to attempt and get correct answers to at least half of the questions in each quiz.  Altogether 5 quizzes count for 5% of the final grade, however each quiz has a different number of questions and is worth different percentages: Q1 - 1%, Q2 - 1,5%, Q3 - 1,2% Q4 - 0,8% Q5 - 0,5%
Suggested set up