Wiki User
∙ 2011-12-29 17:58:086, you must get at least 24 of the questions correct to make an 80%. I found this by setting up a proportion:
x questions 80 %
_________ = ________
30 questions 100%
= 24 question (must be answered correctly)
30-24= 6 questions (can be answered incorrectly)
Wiki User
∙ 2011-12-29 17:58:08You can miss 10% of questions, or 12 questions
To get exactly 90% you need to miss 5.6 questions.
22 questions
35
6 of them.
You can miss 10% of questions, or 12 questions
To get exactly 90% you need to miss 5.6 questions.
.8 x 30 = 24 so you can miss 6 questions
22 questions
40
35
24 of them.
6 of them.
Providing that all the other questions are correct then it is 9 questions
25 questions missed
No more than 15.But why miss any ?
Just one question, and I reckon it was the question about percentages!