I missed 18 out of 75 questions. What is my score?
Your score is 57 out of 75.
Simply subtract 18 from 75 to get your answer.
Decimal Form: 0.76
Grade Form: 76% (C)
The percentage of questions answered is
The count of question not missed is: 75-18 = 57
Expressed as a fraction of all questions gives
But percentage has the bottom number (denominator) as 100 so we need to change the 75 into 100.
If you wish to maintain the same ratio, for multiply or divide of fractions, what you do to the bottom you do to the top
Multiply top (numerator) and bottom (denominator) by
So the percentage of questions answered is