Four
To get 80% correct, then 20% is wrong.
All 20 is 100%
then 1 is 5% (divide by 20)
then 4 is 20% (multiply by 4)
You can get 60 questions wrong and get a 70 percent but if you get 61 wrong you are at a 69.5 percent.
Each question is worth 2.5 percent. You can get 8 wrong.
69 questions
20
22 questions can be wrong. This means that you would have to get 33 marks, which is 60%
You can get 60 questions wrong and get a 70 percent but if you get 61 wrong you are at a 69.5 percent.
Each question is worth 2.5 percent. You can get 8 wrong.
69 questions
Nine.
If there are forty and you got twelve wrong, then you got twenty-eight correct. 28 out of 40 = 70%
20
22 questions can be wrong. This means that you would have to get 33 marks, which is 60%
To achieve a score of 75 percent on a 15-question test, you can get a maximum of 3 questions wrong. This is because getting 75 percent means answering 75 percent of the questions correctly, which equates to answering 11.25 questions correctly. Since you can't answer a fraction of a question, you need to answer at least 12 questions correctly, allowing for 3 incorrect answers.
To achieve 80 percent on a 40-question test, you need to answer at least 32 questions correctly (80% of 40 is 32). This means you can only get 8 questions wrong (40 - 32 = 8). Therefore, to score 80 percent, you can afford to miss a maximum of 8 questions.
If you got four out of twenty questions wrong, you answered 16 out of 20 questions correctly. To find the percentage of questions answered correctly, you would divide 16 by 20 and then multiply by 100. This means you answered 80% of the questions correctly.
To achieve an 80 percent score on a 75-question test, you need to answer at least 60 questions correctly (since 80% of 75 is 60). This means you can get a maximum of 15 questions wrong (75 total questions - 60 correct answers = 15 wrong).
To achieve an 87 percent score on a 125-question test, you need to correctly answer 87 percent of the questions. This means you need to answer 109 questions correctly (0.87 x 125 = 108.75, rounded up). Therefore, you can get 16 questions wrong (125 - 109 = 16).