Want this question answered?
75% right, 25% wrong.
85%
80%
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.
It is: 78.75%
75% right, 25% wrong.
percentage = 28.75%% rate:= 23/80 * 100%= 0.2875 * 100%= 28.75%
80% of 80 is 64 64 right answers right and 16 wrong answers
You can get 20 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.
18 ÷ 80 × 100 = 22.5% So the percentage of missed questions is 22.5%
85%
toget 80% you need .8 x 15 = 12 questions right. That means you can 15-12 = 3 questions wrong
80%
14 of them.
80 out of 100 is 80/100, so 80%
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.