From the bar graph, answer the following question:
What is the total no. of students in section A, B and C.

a) $40$
b) $140$
c) $52$
d) $215$

Hint: Convert the bar graph to sentences. The number of students from each class. So that you could find the number of students in section A, B and C. The addition of each answer will be important.

Complete answer:
Given, We need first convert the bar graph content into a sentence. The student's value must be checked to find value.
By observing the graph, the Y axis represents the number of students in each class. X axis represents the
Section of the class $7$.
It is given that $40$ are there in section A.
$48$ are there in section B.
$52$ are there in section C.
$45$ are there in section D.
$30$ are there in section E.
According to the question they asked only for sections A, B and C.
$40$ are there in section A.
$48$ are there in section B.
$52$ are there in section C.
We need to add the number of students in sections A, B and C to know the total number of students in these sections.
Total number of students in section A, B and C are represented using the letter N.
N=number of students in section A, B and C.
$N = 40 + 48 + 52$
we will add two numbers
$N = 88 + 52$
We will add these numbers
$N = 140$
The total number of students in section A, B and C are $140$.

Option b is correct.

Note:
First common mistakes done are all sections will be added. We need to verify which sections are asked. We need to concentrate on converting the bar graph to sentences. The value must be taken in more correctly. The addition must be done correctly. Always concentrate on the details which are given in the bar graph and sentence.