31 out of 40 as a Percentage
31 out of 40 is 77.50%, which is a letter grade of C+.
Percentage
77.50%
Letter Grade
C+
Wrong Answers
9
Simplified
31/40
Understanding the Calculation
To convert 31 out of 40 into a percentage, divide the correct answers (31) by the total questions (40) and multiply by 100:
(31 ÷ 40) × 100 = 77.50%
With 31 correct answers out of 40, you got 9 wrong. The fraction 31/40 simplifies to 31/40. On the standard grading scale, 77.50% corresponds to a C+.