10 = 100%
so 5 = 50%
5/15 *100 = 331/3 % (this is the percentage wrong) 10/15 *100 = 662/3 % (the percentage right)
4% wrong
90% correct, or 10% wrong.
If u get 1-5 wrong A 5-10 wrong B 10-15 wrong C 15-20 wrong D 20 and up u get a F
You would have too ask the person who set the exam. However - they don't HAVE to tell you.
You can get 5 out of 50 questions wrong to get 90%.
45.4545.. % wrong.
2 of 5 = 40% wrong .3 of 5 = 60% correct (your score).Please say it was not a math test !
If five people answer eight questions each, then there are 40 total questions. 5 x 8 = 40 If 12 of those 40 answers are wrong, then 30% of the questions are wrong. This leaves 70% of the questions to be right. 12 / 40 = 0.3 0.3 = 30% 40 - 12 = 28 28 / 40 = 0.7 0.7 = 70%
5
5
5×100÷75=6.67%