With 3 wrongs out of 8 questions your average is (3/8)x100 = 37.5% wrong and 62.5 correct.
50
You can get at most 20% wrong. 20% of 16 is 16*20/100 = 3.2 Since you cannot get 0.2 questions wrong, the maximum possible is 3 questions.
toget 80% you need .8 x 15 = 12 questions right. That means you can 15-12 = 3 questions wrong
80%
84
You got 91.66% right, and 8.33% wrong
5/15 *100 = 331/3 % (this is the percentage wrong) 10/15 *100 = 662/3 % (the percentage right)
Your score would be 76.9%
3/14 * 100 = 21.429% (to 3 decimal places). So 21.429% right and 78.571% wrong (both accurate to 3 decimal places only).
With 3 wrongs out of 8 questions your average is (3/8)x100 = 37.5% wrong and 62.5 correct.
25%
To find the percentage of questions you got right, divide the number of questions you got right (3) by the total number of questions (40) and multiply by 100. In this case, the percentage you got right is 7.5%.
50
70
25% wrong 75% right
percentage = 466.67%% rate:= 14 million/3 million * 100%= 4.6667 * 100%= 466.67%