In a math exam, two students scored 95, six students scored 90, three students scored 80, and one student scored 50. What was the average score of the class?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 85.
Sum of marks of 2 students = 2 × 95 = 190
Sum of marks of 6 students = 6 × 90 = 540
Sum of marks of 3 students = 3 × 80 = 240
Sum of marks of all 12 students = 190 + 540 + 240 + 50 = 1020
Required average = 1020/12 = 85