67%
take 10 and divide by 15
10/15 = .66
66
multiply by 100 for percentage
.6666 * 100 = 67%
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your grade would be 80% or a B-
If there are 10 questions, then each question will be worth 10 points to make a total grade of 100. Therefore, if you got 6 questions correct (10 - 4 = 6) then your grade will be a 60 (6 times 10)
If u get 1-5 wrong A 5-10 wrong B 10-15 wrong C 15-20 wrong D 20 and up u get a F
66.6
71% or C-