40 questions
You got 89 percent. Hence, you answered 89/100*150 = 133.5 questions. hence you missed 150 - 133.5 = 16.5 questions.
You can get 60 questions wrong, which leaves you with 140 answers correct, giving you 70%.
If there are 85 questions, a passing grade of 80% would be 68 correct answers.
Provided that all 150 exam questions are weighted equally, then 105 correct responses is 70%.
90% of 27 = 27*90/100 = 24.3 So you MUST answer 25 questions - ie all but 2 - AND get them all correct!
You will have scored 80 out of 150 thus answered 70 questions incorrect.
10 questions
Questions correct are 130 * 0.92 or 120.
To find 80% of the questions on a test of 60 questions, simply60 * 0.80 = 48 questions
You got 89 percent. Hence, you answered 89/100*150 = 133.5 questions. hence you missed 150 - 133.5 = 16.5 questions.
x/30 = 0.93 x = 28 questions
x/30 = .87 x = 26 questions
0.70 x 125 = 88 questions right You can miss 125-88 = 37 questions to get 70 percent But you got to get all the rest correct!
Providing that all the other questions are correct then it is 9 questions
138 correct answers. 138/150=92
You can get 60 questions wrong, which leaves you with 140 answers correct, giving you 70%.
Getting 72 per cent right means if you had 100 questions you would have got 72 correct. Since there were half as many questions (50), you would have got half as many (36) correct.