90% of 80 right means
10% of 80 wrong, which means
10/100 x 80
= 1/10 x 80
= 1/1 x 8
= 8 questions wrong.
39
Nine.
i dont no sorry
45.4545.. % wrong.
It usually is because IQ questions don't exactly test on how well you do on everything, they only see how you do in one subject. Now the point of having IQ questions is to see how you do on an average of a lot of subjects.
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.
You can get up to 150 questions wrong.
A test score of "90" represents the percentage of correct questions. Multiply this percentage by the total number of questions and you will have the number of questions correctly answered. Subtract this from the total to find answers wrong. 90% of 40 questions = .90 x 40 = 36 questions right. 40-36 = 4 answers wrong.
To pass the test you need 70% of the questions right.
5
You can get them all wrong. You won't pass the test, but that is not a requirement of the question.
20
11
37 questions wrong gives you a 70.2% correct.
no more than 7
69 questions
39