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\ 19-Nov-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

Example 2. The following table shows the number of students present on a particular
day in the different classes of the junior wing of a school.

Class I II III IV V
Number of students 35 40 45 25 45
Represent the data in a bar graph.

Solution.

Step 1. Draw a horizontal line and a vertical line on a sheet of paper.
Step 2. Mark equal distances of 1 cm along both lines.

Step 3. Take a suitable scale so that the readings can be plotted at equal intervals.
Here, all the numbers are divisible by 5, so we can take the scale as 1 unit =
5 students. Number of students present in
Step 4. Number the markings on the vertical line Y different classes

as multiples of 5, that is 5, 10, 15, 20, 25, Scale: On vertical axis,
30, 35, 40, 45 and 50. 1 unit = 5 students
Step 5. Show the classes along the horizontal
line.

Step 6. Draw a bar of height 35 ÷ 5 = 7 units on
the horizontal line. This represents the
number of students present in class I.
Similarly, draw bars for the other classes

according to their values.
0 X

Exercise 12B

1. The following bar graph shows the sales of toys at good Toy Shop during a
particular week. read the bar graph and answer the following questions.

a. What does the bar graph Y Sales of toys in a week
represent? __________
Scale: On vertical axis, 1 unit = 2 toys
b. What is the scale of the graph?
__________
c. How many toys were sold on
Wednesday? __________
d. Which day had the least sales?
__________
e. Which day had the highest sales?
__________
f. What were the total sales of toys X
during the week? __________ 0

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Data Handling