5
90% of 27 = 27*90/100 = 24.3 So you MUST answer 25 questions - ie all but 2 - AND get them all correct!
To achieve a score of 90 on a 30-question test, you need to answer at least 27 questions correctly, as 90% of 30 is 27. This means you can miss up to 3 questions. Therefore, you can miss a maximum of 3 questions to still score 90.
Provided that all the ones that you do not miss are correct, then 30% of 90 = 90*30/100 = 27.
You can miss out 5 but then need to get all the rest correct. Also, this only works in the scoring system does not penalise wrong answers.
If you answered 27 correctly and 18 incorrectly, you would have answered 60% correctly.
Around 67.5% which in most school classes would be worth a D+.
27 percent of what?27 percent of 360 is 97.2.
27% = 27 out of 100
27 is 60 percent of 45.
27 percent to a fraction = 27/100
355 percent of 27 = 95.85355% of 27= 355% * 27= 3.55 * 27= 95.85
27 percent of 390 is 105.3