Page 182 - Math Skill - 5

180 Maths

2. The performance of a student in 1 Term and 2 Term examinations is given. Draw two
st
nd
bar graphs choosing appropriate scale and answer the following questions.
Subjects English Hindi Maths Science Social Science

1 Term (M.M. 100) 60 70 18 81 94
st
2 Term (M.M. 100) 62 75 82 85 86
nd

(a) In which subject has the student improved his performance the most?
(b) In which subject has the student shown the least improvement?
(c) Has the performance of the student gone down in any subject?

3. Number of children in five different classes are given below. Represent the data on a bar
graph.
Class 1 st 2 nd 3 rd 4 th 5 th
(a) How would you choose a scale? Number of Children 125 126 80 90 96

(b) Which class has the maximum and the minimum number of children?

Circle Graph

We can also represent data by dividing a circle into different parts or sectors. This type of data
representation is called a circle graph or pie-graph or pie-chart.

Let’s learn through an example.

Let’s Attempt

Example: The circle graph shows the number of students and their favourite subjects.
Study the circle graph and answer the following.

(a) How many students like Hindi as their favourite subjects?

(b) Find the difference of students who like Mathematics
and computer. Social 1 Computer Hindi
(c) What is the total number of students who like English Studies 4
and Mathematics? 2

(d) Which is the most favourite subject? English Mathematics 6
5
(e) Which subject is least liked by the students?

Solution: (a) Number of students who like Hindi as their favourite subject =4
(b) Number of students who like Mathematics = 6

Number of students who like computer = 1
Thus, required difference = 6 – 1 = 5
(c) Total number of students who like English and Mathematics = 5 + 6 = 11

(d) Most favourite subject is Mathematics which is liked by 6 students.
(e) Computer is liked least by the students.