You would have a 31 out of 40, or 77.5%
36%
9:30
70%
65% or D
You would have a 31 out of 40, or 77.5%
13 - 4 = 9 correct 9/13 x 100 = 69% (rounded)
36%
9:30
78% or C+
65% or D
70%
85% or 51/60
88%
30 - 9 = 21 kids didn't. (21/30)*100 = 70% didn't get an A (meaning 30% did)
The score is 74%. The grade letter will depend on the grade boundary.
To calculate your grade, you divide the number you got correct (9) by the total number of questions (12), which would give you 75%.