40 out of 60 means 20 wrong answers
Scoring 40 out of 60 is the same as getting 20 wrong out of 60. Both describe one result: 40 correct answers on a 60-question test. Whether your teacher counts up from correct answers or down from wrong ones, the percentage is identical.
How the 40 out of 60 percentage is calculated
The percentage comes from one division: 40 Γ· 60 Γ 100 = 66.67%. Every question on a 60-question test is worth 1.67% of the total score.
Why 66.67% is a D on the standard scale
The standard 10-point scale puts a D between 60% and 69%, so a 66.67% test earns a D. That converts to a 1.0 on the 4.0 GPA scale.
How many can you miss on a 60-question test?
Every letter grade on a 60-question test has a maximum number of wrong answers.
Letter grade cutoffs for a 60-question test
- A β at least 54 correct (miss no more than 6 questions)
- B β at least 48 correct (miss no more than 12 questions)
- C β at least 42 correct (miss no more than 18 questions)
- D β at least 36 correct (miss no more than 24 questions)
Anything at or below 35 correct falls under 60% and is an F on this scale. Your own class may round differently or use a curve, so treat these cutoffs as the common default rather than a rule.