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NCERT solutions for Maths Data handling Download as PDF
NCERT Solutions for Class 6 Maths Data handling
Class –VI Mathematics
(Ex. 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 Reading story books Watching TV Listening to music Painting  45 30 20 10 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:
NCERT Solutions for Class 6 Maths Exercise 9.4
Question 2.The number of mathematics books sold by a shopkeeper on six consecutive days is shown below:
Days  Sunday  Monday  Tuesday  Wednesday  Thursday  Friday 
No. of books sold  65  40  30  50  20  70 
Draw a bar graph to represent the above information choosing the scale of your choice.
Answer:
Question 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.
Years  Number of bicycles manufactured 
1998 1999 2000 2001 2002  200 600 900 1100 1200

(a)In which year were the maximum number of bicycles manufactures?
(b)In which year were the minimum number of bicycles manufactured?
Answer:
(a) 2002
(b) 1999
NCERT Solutions for Class 6 Maths Exercise 9.4
Question 4.Number of persons in various age groups in a town is given in the following table:
Age Group  Number of persons 
1 – 14 15 – 29 30 – 44 45 – 59 60 – 74 75 and above  2 Lakhs 1 lakh 60 thousands 1 lakh 20 thousands 1 lakh 20 thousands 80 thousands 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:
(a)Group 30 – 44 and group 45 – 59
80,000 + 40,000 = 1,20,000
NCERT Solutions for Class 6 Maths Exercise 9.4
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