You can miss all of them, if you like! You will fail miserably, but you did not say you wanted to pass!
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Three 15 = 100% 1.5 = 10% 3 = 20% as a miss is 100% - 80% = 20%
22
Provided that all the ones that you do not miss are correct, then 30% of 90 = 90*30/100 = 27.
3
20
12
Three 15 = 100% 1.5 = 10% 3 = 20% as a miss is 100% - 80% = 20%
22
Provided that all the ones that you do not miss are correct, then 30% of 90 = 90*30/100 = 27.
To achieve a score of 70 on a test of 20 questions, you would need to answer 14 questions correctly (70% of 20). This means you can afford to miss 6 questions and still pass the test with a score of 70.
To get at least 64% you can miss at most 100 - 64 % = 36 % Percent means "out of 100" 36 % of 56 = 36/100 x 56 = 20.16 → Can miss 20 questions.
100%-80%=20%10*.2=2Therefore you missed 2 questions.
20
If you miss 5 questions on a 20-question test, you answered 15 questions correctly. To find your grade, divide the number of correct answers (15) by the total number of questions (20) and then multiply by 100 to get a percentage. This results in a grade of 75%.
20