NCERT Solutions(Part - 2) - Data Handling Class 6 Notes | EduRev

Mathematics (Maths) Class 6

Class 6 : NCERT Solutions(Part - 2) - Data Handling Class 6 Notes | EduRev

The document NCERT Solutions(Part - 2) - Data Handling Class 6 Notes | EduRev is a part of the Class 6 Course Mathematics (Maths) Class 6.
All you need of Class 6 at this link: Class 6

Exercise 9.4

Question 1)

A survey of 120 school students was done to find which activity they prefer to do in their free time.

Preferred activity

Number of students

Playing

45

Reading story books

30

Watching TV

20

Listening to music

10

Painting

15


Draw a bar graph to illustrate the above data taking scale of 1 unit length = 5 students. Which activity is preferred by most of the students other than playing?

Answer 1:

NCERT Solutions(Part - 2) - Data Handling Class 6 Notes | EduRev

Reading story books is the activity preferred by most of the students other than playing.


Question 2)

The number of Mathematics books sold by a shopkeeper on six consecutive days is shown below:

Days

Number of books sold

Sunday

65

Monday

40

Tuesday

30

Wednesday

50

Thursday

20

Friday

70

Draw a bar graph to represent the above information choosing the scale of your choice.

Answer 2:

NCERT Solutions(Part - 2) - Data Handling Class 6 Notes | EduRev


Question 3)

Following table shows the number of bicycles manufactured in a factory during the years 1998 to 2002. Illustrate this data using a bar graph. Choose a scale of your choice. 

Years

Number of bicycles manufactured

1998

800

1999

600

2000

900

2001

1100

2002

1200

(a) In which year was the maximum number of bicycles manufactured?

(b) In which year was the minimum number of bicycles manufactured?

Answer 3:

NCERT Solutions(Part - 2) - Data Handling Class 6 Notes | EduRev

(a) The maximum number of bicycles were manufactured in 2002.

(b) The minimum number of bicycles were manufactured in 1999.

Question 4)

Number of persons in various age groups in a town is given in the following table.

Age group

1 - 14

15-29

30 - 44

45-59

60 -74

75 & above

Number of persons

2 lakhs

1 lakhs

60 thousands

1 lakh

20 thousands

1 lakh

20 thousands

80

40

Thousands

Draw a bar graph to represent the above information and answer the following questions. (take 1 unit length = 20 thousands)

(a) Which two age groups have same population?

(b) All persons in the age group of 60 and above are called senior citizens. How many senior citizens are there in the town?

Answer 4:

NCERT Solutions(Part - 2) - Data Handling Class 6 Notes | EduRev

(a) Group 30 – 44 and group 45 – 59 have the same population.

(b) Senior citizens are the persons between the age group either from 60 - 74 or from 75 above. Therefore, 

      Number of senior citizens in town = 80000 + 40000

      = 1 lakh 20 thousand



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