You can get 60 questions wrong, which leaves you with 140 answers correct, giving you 70%.
You can get 18 wrong.
If you miss 28 questions out of 70, your score would be 60%
you would get a 70
70% were correctly answered.
70% of 25 is 17.5. That is you will pass with 7 (7.5) questions 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.
To score 70% or higher you must get at least 70/100 * 70 = 49 questions right. So you can get 70 - 49 = 21 questions wrong, but no more!
You can get 60 questions wrong, which leaves you with 140 answers correct, giving you 70%.
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.
30
14 of them.
30/100*25 =7.5 so you must not get more than 7 questions wrong to score 70%
70%
21%
37 questions wrong gives you a 70.2% correct.
You can get 18 wrong.