What are the average marks obtained by all five students in Mathematics?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 83.
We know that,
Average = Sum of observations/Number of observations
Total marks obtained by all students in Mathematics = 70 + 85 + 90 + 95 + 75 = 415
Average = 415/5 = 83
Thus, the average mark obtained by all five students in Mathematics is 83