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TR Jain & Vk Ohri (2018) Solutions for Class 11 Commerce Economics Chapter 6 - Diagrammatic Presentation Of Data: Bar Diagrams

TR Jain & Vk Ohri (2018) Solutions for Class 11 Commerce Economics Chapter 6 Diagrammatic Presentation Of Data: Bar Diagrams are provided here with simple step-by-step explanations. These solutions for Diagrammatic Presentation Of Data: Bar Diagrams are extremely popular among class 11 Commerce students for Economics Diagrammatic Presentation Of Data: Bar Diagrams Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the TR Jain & Vk Ohri (2018) Book of class 11 Commerce Economics Chapter 6 are provided here for you for free. You will also love the ad-free experience on Meritnation’s TR Jain & Vk Ohri (2018) Solutions. All TR Jain & Vk Ohri (2018) Solutions for class 11 Commerce Economics are prepared by experts and are 100% accurate.

Page No 103:

Question 1:

Get information from your school office about the CBSE result (2017) for the students of Class XII in your school. Draw a bar diagram (showing their aggregate marks classified as 1st division, 2nd division and 3rd division).

Answer:

Division I II III
Number of students 25 60 15



Page No 103:

Question 2:

Collect data on the literacy rate in major states of India. Refer to Census 2011. Present the data in terms of a bar diagram. Write your observations how different states have performed in improving literacy among the masses.

Answer:

States Literacy Rate
Andhra Pradesh (A.P.)
Bihar
Uttar Pradesh (U.P.)
Kerala
Himanchal Pradesh (H.P.)
Gujrat
Delhi
Haryana
67.7
63.8
69.7
93.9
83.8
79.3
86.3
76.6




Observation and Conclusion:
The state of Kerala is way ahead of other states in India in the matter of the literacy rates. The states having literacy level below 70% are Andhra Pradesh, Bihar and Uttar Pradesh. Whereas states like Gujarat, Haryana and Himachal Pradesh have shown an average performance. Delhi being the capital of India has literacy level of 86.3%,which requires attention and should be enhanced. Among all the states, Bihar has the lowest literacy level.



Page No 105:

Question 1:

Check your school records on admissions. See how many students were admitted every year during the last 10 years. Classify the data as male and female students. Present the data in the form of a multiple bar diagram.

Answer:

Year 2003−04 2004−05 2005−06 2006−07 2007−08 2008−09 2009−10 2010−11 2011−12 2012−13
Male
Students

 
40 50 60 45 50 90 65 70 75 80
Female
Students

 
50 30 70 50 50 50 45 80 80 90






Page No 109:

Question 1:

Here is an exercise for the students of Class XI. Draw a programme to conduct direct personal oral investigation of all the students of your school. Find out which mode of transport they use to come to the school. Present your information in terms of a pie diagram.

Answer:

Mode of Transportation Percentage Share Degree Share
School Bus 40 40100×360°=144°
Auto- rickshaw 10 10100×360°=36°
Van 25 25100×360°=90°
Personal Vehicle 25 25100×360°=90°





Page No 119:

Question 1:

Make a suitable diagram of the following data on population in India:

Year 1951 1961 1971 1981 1991 2001 2011
Population (crore) 36.1 43.9 54.8 68.3 84.6 102.8 121.0

Answer:

Year 1951 1961 1971 1981 1991 2001
Population 
(in crore)
36.1 43.9 54.8 68.3 84.6 102.8


Page No 119:

Question 2:

Give a diagrammatic presentation of the following data on India's Exports and Imports:

Year Export
(₹ crore)
Import
(₹ crore)
2014-15

2015-16

2016-17
18,96,445

17,16,378

18,52,340
27,37,087

24,90,298

25,77,422

Answer:


The given data can be presented in the form of a multiple bar diagram as follows.

Page No 119:

Question 3:

Make a bar diagram of the following data on India's population:

Year 1971 1981 1991 2001 2011
Population (crore) 54.8 68.3 84.6 102.8 121.0

Answer:

Year 1971 1981 1991 2001 2011
Population
(in crore)
54.8 68.3 84.6 102.8 121

Page No 119:

Question 4:

Make a multiple bar diagram of the following data:

Faculty Number of Students
2014-15 2015-16 2016-17
Arts

Science

Commerce
600

400

200
550

500

250
500

600

300

Answer:


                  Number of Students in Different Academic Streams

Page No 119:

Question 5:

Following table shows estimates of cost of production of certain commodities. Present the data in the form of a sub-divided bar diagram:

Estimate of Cost Goods
A B C D
Raw materia

Wages

Fixed Costs

Office expenses
50

40

10

10
40

40

12

8
45

40

15

10
50

40

15

5
Total Cost 110 100 110 110

Answer:

Goods
Estimates A B C D Total
Raw Materials
Wages
Fixed Cost
Office Expenses
50
40
10
10
40
40
12
8
45
40
15
10
50
40
15
5
185
160
52
33



Page No 120:

Question 6:

Present the following data in the form of a multiple bar diagram:

Year Exports
(₹ crore)
Imports
(₹ crore)
2013-14

2014-15

2015-16

2016-17
19,05,011

18,96,445

17,16,378

18,52,340
27,15,434

27,37,087

24,90,298

25,77,422

Answer:

Year Export
(Rs crore)
Import
(Rs crore)
2013-14
2014-15
2015-16
2016-17
19,05,011
18,96,445
17,16,378
18,52,340
27,15,434
27,37,087
24,90,298
25,77,422


Page No 120:

Question 7:

Waht do you mean by a circular diagram? Present the data on the expenditure of a labour-family in the form of a circular diagram:

Items of Expenditure Food Clothing Housing Fuel and Light Others
Percentage of Income Spent 65 15 12 5 3

Answer:

Circular diagram or a Pie diagram depicts a circle that is divided into various segments showing the values of different items (components) in percentage terms
For presenting the given percentage values in a pie diagram, the percentage values must be converted into the respective degree values, for which the following formula is used.
Degree Value = Component Value100×360
 

Item Percentage Share Degree Share
Food 65 Degree share of Food = 65100×360=234°
Clothing 15 Degree share of Clothing = 15100×360=54°
Housing 12 Degree share of Housing = 12100×360=43.2°
Fuel & Light 5 Degree share of Fuel and Light = 5100×360=18°
Others 3 Degree share of Others = 3100×360=10.8°

Page No 120:

Question 8:

Following data relate to the construction of a house in Delhi. Present the information in the form of a pie diagram:

Items Labour Bricks Cement Steel Timber Supervision
Percentage Expenditure 25 15 20 15 10 15

Answer:

The percentage values are converted into degree values using the following formula.
Degree value= Component value100×360
 

Items Percentage Share Degree Share
Labour 25 Degree share of Labour= 25100×360=90°
Bricks 15 Degree share of Bricks= 15100×360=54°
Cement 20 Degree share of Cement= 20100×360=72°
Steel 15 Degree share of Steel= 15100×360=54°
Timber 10 Degree share of Timber= 10100×360=36°
Supervision 15 Degree share of Supervision= 15100×360=54°

Page No 120:

Question 9:

For the years 2012-13 and 2013-14, value of gross domestic product at factor cost by the industry of origin is given in the following table. Present the information in the form of Pie Diagram showing differences in the percentage contribution of different sectors between the said years.

Sector Year
2012-13 2013-14
Primary

Secondary

Tertiary
17

57

26
16.7

26

57.3
Total 100 100

Answer:

The percentage values are converted into degree values using the following formula.
Degree share= Percentage share100×360                    = Percentage share ×3.6
 

Year 2012 - 2013  Year 2013 - 2014
Sector Percentage contribution Degree Share Sector Percentage contribution Degree Share
Primary 17  17×3.6=61.2° Primary 16.7 16.7×3.6=60.12°
Secondary 57 57×3.6=205.2°  Secondary 26 26×3.6=93.6° 
Tertiary 26  26×3.6=93.6° Tertiary 57.3  57.3×3.6=206.28°



 

Analysing the above diagram, we can conclude that in 2012-13 it is the secondary sector that contributed the most to GDP, on the other hand, in 2013-14, it is tertiary sector that contributed the most to GDP.

Page No 120:

Question 10:

Present the following data on the production of food grains in the form of a sub-divided bar diagram:

Year Wheart Rice Gram Total
2016

2017
30

45
20

30
10

15
60

90

Answer:

Year Wheat Rice Grain Total
2016 30 20 10 60
2017 45 30 15 90



Page No 121:

Question 11:

Present the following data by a deviation bar diagram, showing the difference between sale proceeds and costs of a firm.

Year Sale Proceeds
(₹ in lakh)
Costs
(₹ in lakh)
2011-12

2012-13

2013-14

2014-15

2015-16

2016-17
115

140

145

150

160

170
100

115

155

140

145

165

Answer:

Year Sale Proceeds Costs Sale Proceeds Costs
2011-12
2012-13
2013-14
2014-15
2015-16
2016-17
115
140
145
150
160
170
100
115
155
140
145
165
15
25
−10
10
15
5



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