No more than 15.
But why miss any ?
40
25 questions missed
Not more than 11.
To achieve a score of 70 percent on a 10-question test, you need to answer at least 7 questions correctly. This means you can miss a maximum of 3 questions. Therefore, missing 3 questions would still allow you to meet the 70 percent threshold.
75% of 42 = .75 x 42 = 32 questions right; you can miss 42-32 = 10 questions to get a 75
You can miss 10% of questions, or 12 questions
.8 x 30 = 24 so you can miss 6 questions
22 questions
35
40
24 of them.
6 of them.
Providing that all the other questions are correct then it is 9 questions
25 questions missed
22
No more than 19. You can do it!
Not more than 11.