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what is your grade percentage if you miss 6 questions out of 40
A test score of "90" represents the percentage of correct questions. Multiply this percentage by the total number of questions and you will have the number of questions correctly answered. Subtract this from the total to find answers wrong. 90% of 40 questions = .90 x 40 = 36 questions right. 40-36 = 4 answers wrong.
20 questions is 40% of 50 questions.
31/40 = 77.5%.
You have "30" 2 point questions and = 60 points, and "10" 4 point questions which = 40 so 60+40= 100 (check)