Line chart Questions and Answers

September 26, 2023

Line chart Questions and Answers

Here, In this Page you will find Line Chart Questions and Answers along with some of its rules.

It also allows the user to visualize the trends and helps them in making analyses.

Definition : Line chart or line graph is a form of chart that shows data or statistics as a sequences of individual data points recognized as 'markers' which are connected through straight lines.

What is a Line Chart ?

A line chart is a type of data visualization that is used to display data points over a continuous interval or time period, typically on a two-dimensional Cartesian plane. Line charts are particularly effective for showing trends and patterns in data over time and are widely used in various fields such as finance, economics, science, and engineering.

Application of Data Interpretation

There are Many Areas where Data Interpretation is Used to Find Various data when we have to Identify Various data.

There are Four Types of Data Interpretation

1. Line Chart : A line Chart or graph is a graphical display of information that changes continuously over time.

2 . Pie Chart : In a pie chart, the length or central angle of each sector or slice is proportional to the quantity it represents.

3. Bar Chart : A bar chart represents the data as horizontal or vertical bars. The length of each bar is proportional to the amount that it represents.

4 . Radar Chart : A Radar chart is a graphical method of displaying multivariate data in the form of a two-dimensional chart of three or more quantitative variables represented on axes starting from the same point.

Below is an example image to understand about Pie Chart

The below data shows :

Average marks of the Graph of two students from the year 2001 to 2006.

Note : It displays quantitative values for a specific period of time. It included two axis: X and Y, displaying horizontally and vertically and usually denoted as (x,y).

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Line Chart Questions and Answers

1. The line graph below shows the export of three different companies from the year 2001 to 2007. Study the graph carefully and answer the questions accordingly.

Among the following pairs of years find out which year the total exports of all the three companies was equal?

2005 and 2006

47.03%

2006 and 2007

19.31%

2001 and 2002

11.63%

2004 and 2007

22.03%

In 2001 = 20 + 40 + 70 = 130

In 2002 = 50 + 30 + 80 = 160

In 2003 = 30 + 130 + 50 = 210

In 2004 = 60 + 80 + 50 = 190

In 2005 = 110 + 40 + 70 = 220

In 2006 = 40 + 70 + 110 = 220

In 2007 = 130 + 110 + 150 = 390

Therefore, in the years 2005 and 2006 the export from all the three companies was same.

Good Job! Did you know? : With $8.5 billion in their kitty, Wipro is the 4th largest Indian IT company in terms of revenue.

Oops!

2. The line graph below shows the export of three different companies from the year 2001 to 2007. Study the graph carefully and answer the questions accordingly.

Among the following years given below in which year the difference between the export from company A and company B was the minimum?

2003

21.6%

2005

15.98%

2006

14.2%

2007

48.22%

In 2001: 40 – 20 = 20
In 2002: 80 – 50 = 30
In 2003: 130 – 30 = 100
In 2004: 80 – 60 = 20
In 2005: 110 – 40 = 70
In 2006: 70 – 40 = 30
In 2007: 130 – 110 = 20
On the basis of the option, the difference between the exports was minimum in 2007.

Good Job! Did you know? : With $8.5 billion in their kitty, Wipro is the 4th largest Indian IT company in terms of revenue.

Oops!

3. The line graph below shows the export of three different companies from the year 2001 to 2007. Study the graph carefully and answer the questions accordingly.

Find the difference between 2003 and 2006’s average export of the three Companies.

$\frac{9}{2}$

9.58%

$\frac{8}{3}$

20.83%

$\frac{10}{3}$

61.67%

$\frac{11}{2}$

7.92%

Average export of company A, B, and C is 2003 = $\frac{30 + 130 + 50}{3} = 70$

Average export of company A, B, and C is 2006 = $\frac{40 + 70 + 110}{3} = \frac{220}{3}$

Therefore, the difference = $\frac{220}{3} - 70 = \frac{220-210}{3} = \frac{10}{3}$

Good Job! Did you know? : With $8.5 billion in their kitty, Wipro is the 4th largest Indian IT company in terms of revenue.

Oops!

4. The line chart below shows the number of smartphones manufactured by company P and Q from the year 2005 to 2009. Study the graph carefully and answer the questions accordingly.

Identify the difference between the smartphones produced by Company Q in 2008 and 2009?

31000

6.25%

32500

8.33%

34000

77.92%

36500

7.5%

In 2008 company Q manufactured 13500 smartphones
In 2009 company Q manufactured 16900 smartphones
Therefore, the difference = 169000 – 135000 = 34000 smartphones.

Good Job! Did you know? : With $8.5 billion in their kitty, Wipro is the 4th largest Indian IT company in terms of revenue.

Oops!

5. The line chart below shows the number of smartphones manufactured by company P and Q from the year 2005 to 2009. Study the graph carefully and answer the questions accordingly.

Find the difference of between the smartphones produced by two Companies from 2005 to 2009.

32000

60.73%

34000

14.14%

31500

15.18%

39500

9.95%

Given, the production of smartphones by company P from 2005 to 2009 was: 121000 + 101000 + 145000 + 88000 + 180000 = 635000

The production of smartphones by company Q from 2005 to 2009 was: 141000 + 120000 + 102000 + 135000 + 169000 = 667000

Therefore, the difference = 667000 – 635000 = 32000

Good Job! Did you know? : With $8.5 billion in their kitty, Wipro is the 4th largest Indian IT company in terms of revenue.

Oops!

6. The line chart below shows the number of smartphones manufactured by company P and Q from the year 2005 to 2009. Study the graph carefully and answer the questions accordingly.

Find the approximate average number of smartphones produced by company P?

105900

9.33%

127000

82.9%

106989

5.7%

100000

2.07%

Average number of smartphones produced by company P

= $\frac{121000 + 101000 + 145000 + 88000 + 180000}{5}$

= $\frac{635000}{5} = 127000$

Good Job! Did you know? : With $8.5 billion in their kitty, Wipro is the 4th largest Indian IT company in terms of revenue.

Oops!

7. The line chart below shows the number of smartphones manufactured by company P and Q from the year 2005 to 2009. Study the graph carefully and answer the questions accordingly.

The making of smartphones by Company Q in 2008 was about what percent in comparison to the making of smartphones by Company P?

152%

11.66%

155%

19.02%

153%

64.42%

161%

4.91%

In 2008 the smartphones produced by company P = 88000

In 2008 the smartphones produced by company Q = 135000

Therefore, percentage = $\frac{135000}{88000} \times 100$ = 153%

Good Job! Did you know? : With $8.5 billion in their kitty, Wipro is the 4th largest Indian IT company in terms of revenue.

Oops!

8. The below line graph provides the percentage of the students who qualified an examination out of the total number of candidates who appeared for the examination over a period of seven years from 1994 to 2000. Study the graph carefully and answer the questions accordingly.

In which year the difference between the numbers of students qualified was maximum?

1992-1993

66.47%

1994-1995

12.72%

1989-1990

13.87%

1991-1992

6.94%

The difference between 1989 -1990 = 60 – 35 = 25

1990-1991 = 70 – 60 = 10

1991-1992 = 70 – 60 = 10

1992-1993 = 90 – 60 = 30

1993-1994 = 90 – 90 = 0

1994 – 1995 = 90 – 70 = 20

Therefore, the maximum difference was form 1992-1993

Good Job! Did you know? : With $8.5 billion in their kitty, Wipro is the 4th largest Indian IT company in terms of revenue.

Oops!

9. The below line graph provides the percentage of the students who qualified an examination out of the total number of candidates who appeared for the examination over a period of seven years from 1994 to 2000. Study the graph carefully and answer the questions accordingly.

If the total students qualified in 1989 was 5600, then find out how many students applied for the exam in 1989?

15020

8.59%

16000

68.1%

17100

6.13%

Data Inadequate

17.18%

Let us assume the number of candidate applied for the exam in 1989 as x

Given, the number of students qualified = 5600

35% of x = 5600

$\frac{35}{100} \times x = 5600$

35x = 560000

x = $\frac{560000}{35} = 16000$

Therefore, students applied in 1989 = 16000.

Good Job! Did you know? : With $8.5 billion in their kitty, Wipro is the 4th largest Indian IT company in terms of revenue.

Oops!

10. The below line graph provides the percentage of the students who qualified an examination out of the total number of candidates who appeared for the examination over a period of seven years from 1994 to 2000. Study the graph carefully and answer the questions accordingly.

If the total students appeared in 1992 and 1993 were 42000, then find the total number of candidates qualified in these two years.

19000

6.37%

21000

12.1%

32154

10.83%

Data Inadequate

70.7%

The total students qualified in 1992 and 1993 cannot be concluded till we don’t know that how many students appeared in any one of the year or the percentage of qualified candidate together in 1992 and 1993.

Therefore, the data provided is inadequate.

Good Job! Did you know? : With $8.5 billion in their kitty, Wipro is the 4th largest Indian IT company in terms of revenue.

Oops!

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Series

Line Charts – Questions Formulas | How to Solve Quickly | Tricks & Shortcuts
Pie Charts – Questions | Formulas | How to Solve Quickly | Tricks & Shortcuts
Bar Charts – Questions | Formulas | How to Solve Quickly | Tricks & Shortcuts
Radar Charts – Questions | Formulas | How to Solve Quickly | Tricks & Shortcuts

Series

Pie Charts –
Questions |
Formulas |
How to Solve Quickly |
Tricks & Shortcuts
Bar Charts –
Questions |
Formulas |
How to Solve Quickly |
Tricks & Shortcuts
Radar Charts –
Questions |
Formulas |
How to Solve Quickly |
Tricks & Shortcuts