30 out of 40 as a Percentage
30 out of 40 is 75.00%, which is a letter grade of C.
Percentage
75.00%
Letter Grade
C
Wrong Answers
10
Simplified
3/4
Understanding the Calculation
To convert 30 out of 40 into a percentage, divide the correct answers (30) by the total questions (40) and multiply by 100:
(30 ÷ 40) × 100 = 75.00%
With 30 correct answers out of 40, you got 10 wrong. The fraction 30/40 simplifies to 3/4. On the standard grading scale, 75.00% corresponds to a C.