a 93 good job :)
90% of 80 right means 10% of 80 wrong, which means 10/100 x 80 = 1/10 x 80 = 1/1 x 8 = 8 questions wrong.
You would get a 94% for a grade which is typically going to be an A.
x/30 = 1-0.87= .13 x = 30 x .13 = 4 questions wrong 26 question right = 26/30 =.87 = 87% right
They will be in Grade 3 . Grade 1 : 6 Grade 2 : 7 Grade 3 : 8 Grade 4 : 9 Grade 5 : 10 Grade 6 : 11 Grade 7 : 12 Grade 8 : 13 Grade 9 : 14 Grade 10 : 15 and so on.
The same way you grade any test - you add up how many questions the student got correct and then divide that by the total number of questions. In order to change that into percentage, you then multiply that number by 100.For example, if someone got 92 out of 110 questions right, their score would be 92/100 = 0.836 x 100 = 83.6 percent.
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
percentage of 1 wrong out of 85 questions = 1.17% % rate: = 1/85 * 100% = 0.0117 * 100% = 1.17%
Fail.
As a percentage it is 80%
You can get at most 22 questions wrong, otherwise you will score less than 70 %. To get 70% right you can get 100 % - 70 % = 30 % wrong 30% of 75 = 30/100 x 75 = 22.5 I assume you can't get 1/2 a question wrong, so you can get at most 22 questions wrong otherwise you will score less than 70 %.
Wrong . . . . . 2.86% Correct . . . . 97.14%
"What is 1 + 1?" is an easy math question in any grade.
12/13 correct is a 92% which is an A-
It can be 100 or 50 questions.
You would get a 94% for a grade which is typically going to be an A.
90% of 80 right means 10% of 80 wrong, which means 10/100 x 80 = 1/10 x 80 = 1/1 x 8 = 8 questions wrong.
93%