Observe the bar graph showing the number of students in different sections of a school and answer the question.

Which section has nearly the average number of students when compared with all the 6 sections of the graph?

Correct option is D

Solution:
The average number of students in 6 sections = $$\frac{60 + 30 + 20 + 40 + 70 + 50} 6$$​ = 45
Average number of 4 and 5 sections = $$\frac{40 + 70} 2$$​= 55
Average number of 4 and 6 sections = $$\frac{40 + 50} 2$$​ = 45
Average number of 2 and 3 sections = $$\frac{30 + 20} 2$$​= 25
Average number of 1 and 3 sections = $$\frac{60 + 20} 2$$​ = 40
Hence option (d) is the valid answer.