Percentage Score = (104 / 150) * 100
= 0.6933 * 100
= 69.33%
Now, let's check the grading scale to find the corresponding letter grade:
- A: 90% - 100%
- B: 80% - 89%
- C: 70% - 79%
- D: 60% - 69%
- F: 0% - 59%
Based on the percentage score of 69.33%, the letter grade for 104 out of 150 is D.