To evaluate the performance of students of a course, an instructor used a quiz worth 15%, a test worth 25%, and a final exam worth 60%. Out of 100, if a student got 85 in the quiz, 74 in the test, and...

To evaluate the performance of students of a course, an instructor used a quiz worth 15%, a test worth 25%, and a final exam worth 60%. Out of 100, if a student got 85 in the quiz, 74 in the test, and 89 in the final exam, what was the average mark of the student in the course? A. 85.00 B. 84.65 C. 74.00 D. 82.67