Tr Jain & Vk Ohri (2017) for Class 11 Humanities Economics Chapter 6 - Diagrammatic Presentation Of Data: Bar Diagrams

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Tr Jain & Vk Ohri (2017) Solutions for Class 11 Humanities 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 Humanities 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 (2017) Book of Class 11 Humanities 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 (2017) Solutions. All Tr Jain & Vk Ohri (2017) Solutions for class Class 11 Humanities Economics are prepared by experts and are 100% accurate.

Page No 97:

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 97:

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 99:

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 103:

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	$\frac{40}{100} \times 360 ° = 144 °$
Auto- rickshaw	10	$\frac{10}{100} \times 360 ° = 36 °$
Van	25	$\frac{25}{100} \times 360 ° = 90 °$
Personal Vehicle	25	$\frac{25}{100} \times 360 ° = 90 °$

Page No 109:

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 109:

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 110:

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 110:

Question 4:

Make a multiple bar diagram of the following data:

Faculty	Number of Students
Faculty	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 110:

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
Estimate of Cost	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 110:

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 110:

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.
$Degree Value = \frac{Component Value}{100} \times 360$

Item	Percentage Share	Degree Share
Food	65	$Degree share of Food = \frac{65}{100} \times 360 = 234 °$
Clothing	15	$Degree share of Clothing = \frac{15}{100} \times 360 = 54 °$
Housing	12	$Degree share of Housing = \frac{12}{100} \times 360 = 43.2 °$
Fuel & Light	5	$Degree share of Fuel and Light = \frac{5}{100} \times 360 = 18 °$
Others	3	$Degree share of Others = \frac{3}{100} \times 360 = 10.8 °$

Page No 110:

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.
$Degree value = \frac{Component value}{100} \times 360$

Items	Percentage Share	Degree Share
Labour	25	$Degree share of Labour = \frac{25}{100} \times 360 = 90 °$
Bricks	15	$Degree share of Bricks = \frac{15}{100} \times 360 = 54 °$
Cement	20	$Degree share of Cement = \frac{20}{100} \times 360 = 72 °$
Steel	15	$Degree share of Steel = \frac{15}{100} \times 360 = 54 °$
Timber	10	$Degree share of Timber = \frac{10}{100} \times 360 = 36 °$
Supervision	15	$Degree share of Supervision = \frac{15}{100} \times 360 = 54 °$

Page No 111:

Question 9:

For the years 2019-20 and 2020-21, 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
Sector	2019-20	2020-21
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.
$Degree share = \frac{Percentage share}{100} \times 360 = Percentage share \times 3.6$

Year 2019 - 2020			Year 2020 - 2021
Sector	Percentage contribution	Degree Share	Sector	Percentage contribution	Degree Share
*Primary*	17	$17 \times 3.6 = 61.2 °$	*Primary*	16.7	$16.7 \times 3.6 = 60.12 °$
Secondary	57	$57 \times 3.6 = 205.2 °$	Secondary	26	$26 \times 3.6 = 93.6 °$
*Tertiary*	26	$26 \times 3.6 = 93.6 °$	*Tertiary*	57.3	$57.3 \times 3.6 = 206.28 °$

Analysing the above diagram, we can conclude that in 2019-20 it is the secondary sector that contributed the most to GDP, on the other hand, in 2020-21, it is tertiary sector that contributed the most to GDP.

Page No 111:

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 111:

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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