40 minus 28 = 12 were wrong
10/40 wrong means 30/40 correct 30/40 = 75% correct
If there are forty and you got twelve wrong, then you got twenty-eight correct. 28 out of 40 = 70%
70% or C-
40 over 45 is 88%
A test score of "90" represents the percentage of correct questions. Multiply this percentage by the total number of questions and you will have the number of questions correctly answered. Subtract this from the total to find answers wrong. 90% of 40 questions = .90 x 40 = 36 questions right. 40-36 = 4 answers wrong.
40 minus 28 = 12 were wrong
10/40 wrong means 30/40 correct 30/40 = 75% correct
If there are forty and you got twelve wrong, then you got twenty-eight correct. 28 out of 40 = 70%
70% or C-
If you got 14 out 25 questions right you should get a 40. This is a low grade.
40 over 45 is 88%
Ans: 30%. Working: 40-28=12 12/40 x100%=30%
40% were wrong.
35%
If by grade you mean percentage, you would have scored 67.5%. 40-13= 27 (27/40) * 100
To score 1 wrong on a 40-question test, you need to answer 39 questions correctly. This means you would have to know the material well and only make one mistake, whether due to a misreading of a question, a momentary lapse in knowledge, or second-guessing an answer. Your score would then be calculated as 39 out of 40, resulting in a high percentage.