You get 2/5 (40%) incorrect.
to get a 90 you need to answer 56 questions right (6 wrong) to get an 80 you need to answer 50 right (12 wrong) to get a 70 you need to answer 44 questions right (18 wrong) to get a 60 you need to answer 38 questions right (24 wrong)
138 questions right and 12 questions wrong
80% of 80 is 64 64 right answers right and 16 wrong answers
To pass the test you need 70% of the questions right.
toget 80% you need .8 x 15 = 12 questions right. That means you can 15-12 = 3 questions wrong
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.
x/30 = 1-0.87= .13 x = 30 x .13 = 4 questions wrong 26 question right = 26/30 =.87 = 87% right
10 can be wrong and 30 right; 30/40 = 75%
The test has 25 questions and you can only get 5 questions wrong, if not you fail.You only need to get 15 questions right to pass.
You can get 20 questions wrong.
The test has 25 questions and you can only get 5 questions wrong, if not you fail.You only need to get 15 questions right to pass.
8 wrong i.e. 32 right 10% of 40 is 4 80% = 8 x 4 = 32 40 - 32 = 8