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Mathematics Class 6 NCERT Solutions: Chapter 9 Data Handling Exercise 9.4 – Part 2

Q.3 Following shows the number of bicycles manufactured in a factory during the year 1998 to 2002. Illustrate this data using a bar graph. Choose a scale your choice.

Table of Number of Bicycles Manufactured in a Factory During the Year 1998 to 2002
YearsNumber of bicycles manufactured
1998800
1991600
2000900
20011100
20021200

Answer:

Illustration: Mathematics Class 6 NCERT Solutions: Chapter 9 Data Handling Exercise 9.4 – Part 2

(a) In which year were the maximum number of bicycles manufactures?

Answer: The maximum number of bicycles manufactures in 2002.

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

Answer: The minimum number of bicycles manufactured in 1999.

Q.4 Number of persons in various age groups in a town is given in the following table:

Table of Number of Persons in Various Age Groups in a Town
Age GroupNumber of bicycles manufactured
1 - 142 Lakhs
15 - 291 lakh 60 thousands
30 - 441 lakh 20 thousands
45 - 5980 thousands
60 - 7440 thousands

Draw a bar graph to represent the above information and answer the following questions.

Illustration: Mathematics Class 6 NCERT Solutions: Chapter 9 Data Handling Exercise 9.4 – Part 2

(a) Group and group have same population.

Answer: 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: senior citizens are there in the town.