6 wrong out of 30 leaves 24 correct out of 30. Divide 24 by 30 to get 80%. 80% is usually a B or a B-, unless grading is on a curve. If it is on a curve, then it is impossible for me to say without knowing what the curve is.
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67% or D+
21 - thirty minus nine is 21.
6 answers wrong out of 15 is poor.Is it your grade that you're looking for ?Wrong answers: 6 out of 15Correct answers: (15-6) = 9 out of 159/15 = 0.6 = 60 percent correct, usually a 'D' or an 'F'.
what is your grade percentage if you miss 6 questions out of 40
30 - 5 = 25 correct answers. 25/30 x 100 = 83% (rounded to a whole number)