Four
To get 80% correct, then 20% is wrong.
All 20 is 100%
then 1 is 5% (divide by 20)
then 4 is 20% (multiply by 4)
You can get 60 questions wrong and get a 70 percent but if you get 61 wrong you are at a 69.5 percent.
Each question is worth 2.5 percent. You can get 8 wrong.
You can get 63 questions wrong and get 70%.
69 questions
20
You can get 60 questions wrong and get a 70 percent but if you get 61 wrong you are at a 69.5 percent.
Each question is worth 2.5 percent. You can get 8 wrong.
You can get 63 questions wrong and get 70%.
69 questions
Nine.
If there are forty and you got twelve wrong, then you got twenty-eight correct. 28 out of 40 = 70%
20
100/20 =5 5x16=80 80%
22 questions can be wrong. This means that you would have to get 33 marks, which is 60%
10 can be wrong and 30 right; 30/40 = 75%
Ans: 30%. Working: 40-28=12 12/40 x100%=30%
You can get 5 out of 50 questions wrong to get 90%.