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4. Following table shows the number of cars manufactured in a factory during the years 2014 to
2019. Illustrate this data using a bar graph. Choose a scale of your choice.

Division 2014 2015 2016 2017 2018 2019

Number of cars (in thousands) 12 11 9 14 24 30
Answer the following questions.
(a) In which year were the maximum number of cars manufactured?
(b) In which year were the minimum number of cars manufactured?
(c) How many total number of cars were manufactured during 6 years?
5. The following table shows the number of students taking part in different cultural activities in a
school:

Cultural activities Music Dance Yoga Drama Singing Arts

Number of students 75 105 120 60 90 60
Represent the data by the help of a horizontal bar graph.
6. In a public library, the following observations were recorded by the librarian in a particular
week:

Days Mon Tue Wed Thu Fri Sat

Hindi Newspaper reader 750 600 200 450 600 350
English Newspaper reader 450 400 300 250 450 150

(a) Draw a double bar graph choosing an appropriate scale.
(b) On which day, the number of readers in the library was maximum?
(c) What is the mean number of English newspaper readers?

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MAths connect
Global warming is the long-term heating of Earth's surface observed since the pre-industrial period (between
1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse
gas levels in Earth's atmosphere. Draw a double bar graph that represents the temperature of different cities
for the months of June and December. Which city has the most temperature change when compared to others?

Cities Delhi Mumbai Bengaluru Hyderabad Chennai
June 83 75 95 77 64
December 80 69 97 82 70
Take help of the internet and read more about global warming and carbon emission.
Also, collect the data about the average temperature in Delhi due to carbon emissions in May month from
2020 - 2024. Calculate the arithmetic mean of the data.

Brain Sizzlers
Leena is practicing for a marathon in ‘Intercity Run for Pride’. She ran 60 minutes on Monday, 75 minutes on
Wednesday, and 45 minutes on Friday. On Tuesday and Thursday, she lifted weights at the gym for 45 minutes
each day. She swam for 60 minutes on Saturday and Sunday. What was the arithmetic mean of time per day Leena
spent on practicing during last week?

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