20
Each question is worth 2.5 percent. You can get 8 wrong.
You can get 60 questions wrong and get a 70 percent but if you get 61 wrong you are at a 69.5 percent.
69 questions
22 questions can be wrong. This means that you would have to get 33 marks, which is 60%
10 can be wrong and 30 right; 30/40 = 75%
Each question is worth 2.5 percent. You can get 8 wrong.
You can get 60 questions wrong and get a 70 percent but if you get 61 wrong you are at a 69.5 percent.
69 questions
Nine.
22 questions can be wrong. This means that you would have to get 33 marks, which is 60%
You can get 20 questions wrong.
10 can be wrong and 30 right; 30/40 = 75%
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).
Well, darling, to get an 80 percent on a 70-question test, you can afford to get 14 questions wrong. As long as you nail the rest of those questions, you'll be golden. Just remember, it's not about how many you get wrong, it's about how many you get right.
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).
14 of them.
30