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:
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:
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:
(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  1529  30  44  4559  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:
(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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