Study the given bar-graph and answer the question that follows.
How many students obtained more than the average marks of the class?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 10.
the average marks of the class = (125 + 130 + 135 + 140 + 145 + 150 + 160)/7
⇒ 985/7 = 140.71
The students obtained more than the average marks (140.71) of the class = 5 + 4 +1 = 10