The table below has question-wise data on the performance of students in an examination. The marks for each question are...

Question

The table below has question-wise data on the performance of students in an examination. The marks for each question are also listed. There is no negative or partial marking in the examination.

Q.No | Marks | Answered Correctly | Answered Wrongly | Not Attempted
  1  |   2   |        21          |        17        |      6
  2  |   3   |        15          |        27        |      2
  3  |   2   |        23          |        18        |      3

What is the average of the marks obtained by the class in the examination?

A. 1.34
B. 1.74
C. 3.02
D. 3.91

Accepted Answer

The average marks obtained by the class is 133/44 ≈ 3.02 (Option C). Each student answers three questions; marks are awarded only for correct answers (no negative marking). We need to find the total marks earned by the entire class and divide by the number of students to get the class average. The class size is the same for all questions — we can read it off any row.