20
You can get up to 150 questions wrong.
You could fail seven questions, and still meet the minimum mark required.
5
You can get 63 questions wrong and get 70%.
30
As 11.2 is 80% of 14, you would have to get at least 12 questions right to be above 80%, so you could only get 2 questions wrong.
You can get 20 questions wrong.
You can get up to 150 questions wrong.
You could fail seven questions, and still meet the minimum mark required.
5
You can get 63 questions wrong and get 70%.
It depends on how many questions there are.
30
14 of them.
5
37 questions wrong gives you a 70.2% correct.
no more than 7