Wiki User
∙ 2013-04-08 23:07:3811
Wiki User
∙ 2013-04-08 23:07:3869 questions
20
22 questions can be wrong. This means that you would have to get 33 marks, which is 60%
7 wrong out of 22 questions = 31.8% wrong. 15 correct out of 22 questions = 68.2% correct. I hope it wasn't a math test.
10 can be wrong and 30 right; 30/40 = 75%
69 questions
Nine.
40% were wrong.
45.4545.. % wrong.
39
20
22 questions can be wrong. This means that you would have to get 33 marks, which is 60%
7 wrong out of 22 questions = 31.8% wrong. 15 correct out of 22 questions = 68.2% correct. I hope it wasn't a math test.
You can get up to 150 questions wrong.
10 can be wrong and 30 right; 30/40 = 75%
In order to score exactly 70% on a test with exactly 70 questions ... if every questionis worth the same credit ... you have to get 21answers wrong. You can do it.
7.69%