Nm Shah 2018 Solutions for Class 11 Science Economics Chapter 2 Presentation Of Data are provided here with simple step-by-step explanations. These solutions for Presentation Of Data are extremely popular among Class 11 Science students for Economics Presentation Of Data Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Nm Shah 2018 Book of Class 11 Science Economics Chapter 2 are provided here for you for free. You will also love the ad-free experience on Meritnation’s Nm Shah 2018 Solutions. All Nm Shah 2018 Solutions for class Class 11 Science Economics are prepared by experts and are 100% accurate.
Page No 82:
Question 1:
Draw up a table to show the number of wholly unemployed , temporarily unemployed and total unemployed, each class being divided into males and females , for the following industries:
Fishing, coal mining, iron-ore mining , cloth and wool industries.
Answer:
Category Unemployed→ Industry↓ |
Wholly Unemployed | Temporarily Unemployed | Totally Unemployed | |||
Male | Female | Male | Female | Male | Female | |
Fishing | ||||||
Coal Mining | ||||||
Iron-ore Mining | ||||||
Cloth | ||||||
Wool | ||||||
Total |
Page No 82:
Question 2:
Prepare a blank table to show the distribution of population according to sex and four religions in three age groups in Delhi and Mumbai.
Answer:
City | Boys | Girls | Total | |||||||||
H | M | S | C | T | H | T | S | C | T | |||
Delhi | Age Group 1 | |||||||||||
Age Group 2 | ||||||||||||
Age Group 3 | ||||||||||||
Mumbai | Age Group 1 | |||||||||||
Age Group 2 | ||||||||||||
Age Group 3 | ||||||||||||
Total |
where,
H represents 'Hindus'
M represents 'Muslims'
S represents 'Sikh'
C represents 'Christians'
T represents 'Total'
Page No 82:
Question 3:
Prepare a blank table to show the export of three companioes X, Y , Z to five countries Iran, Iraq, Saudi Arabia, Dubai, Muscat in each of years 2014, 2015 and 2016.
Answer:
Country→ Year↓ |
X | Y | Z | |||||||||||||||
Iran | Iraq | Saudi Arab | Dubai | Muscat | Total | Iran | Iraq | Saudi Arab | Dubai | Muscat | Total | Iran | Iraq | Saudi Arab | Dubai | Muscat | Total | |
2014 | ||||||||||||||||||
2015 | ||||||||||||||||||
2016 | ||||||||||||||||||
Total |
Page No 83:
Question 4:
In a sample study about the smoking habits of people in two towns following data were derived:
Town A | Town B | |
Males in total population | 52% | 54% |
Smokers | 26% | 28% |
Male smokers | 18% | 20% |
Answer:
Town A | Town B | |||||
Male | Female | Total | Male | Female | Total | |
Smokers | 18 | 8 | 26 | 20 | 8 | 28 |
Non-Smokers | 34 | 40 | 74 | 34 | 38 | 72 |
Total | 52 | 48 | 100 | 54 | 46 | 100 |
Page No 83:
Question 5:
Present the following information in a suitable table :
• In 2005 out of a total of 1750 workers of a factory 1200 workers were members of a trade union . The number of women employed was 200 of which 175 did not belong to trade union.
• In 2010, the number of union workers increased to 1580 of which 1290 were men. On the other hand , the number of non-union workers fell down to 208 of which 180 were men.
• In 2015, there were on the pay rolls of factory, 1850 workers of whom 1800 belong to a trade union . Of all the employees in 2015, 300 were women of whom only 8 did not belong to a trade union.
Answer:
Year↓ | Trade Union | Non-Trade Union | Total | ||||
Male | Female | Total | Male | Female | Total | ||
2005 | 1025 | 175 | 1200 | 525 | 25 | 550 | 1750 |
2010 | 1290 | 290 | 1580 | 180 | 28 | 208 | 1788 |
2015 | 1508 | 292 | 1800 | 42 | 8 | 50 | 1850 |
Total | 3823 | 757 | 4580 | 747 | 61 | 808 | 5388 |
Page No 83:
Question 6:
Draw a blank table to present the following information regarding the college students according to:
(a) | Faculty | : | Social Sciences, Commercial Sciences. |
(b) | Class | : | Under-graduate and Post-graduate classes. |
(c) | Sex | : | Male and Female. |
(d) | Years | : | 2016-2017. |
Answer:
Faculty | 2016 | 2017 | |||||
Under Graduate | Post Graduate | ||||||
M | F | T | M | F | T | Total | |
Social Science | |||||||
Commercial Science | |||||||
Total |
Page No 83:
Question 7:
Tabulate the following:
• A super market divided into five main sections$\u2014$grocery, vegetables, medicines, textiles, and novelties$\u2014$recorded the following sales in 2014, 2015, and 2016:
• In 2014, sales in grocery, vegetables, medicines and novelties were ₹ 6,25,000, ₹ 2,20,000 , ₹ 1,88,000 and ₹ 94,000 respectively. Textiles accounted for 30% of the total sales during the year.
• In 2015, the total sales showed 10% increase over the previous year while grocery and vegetables registered 8% and 10% increase over their corresponding figures in 2014, medicines dropped by ₹ 13,000 textiles stood at ₹ 5,36,000.
• In 2016, though the total sales remained the same as in 2015 grocery fell by ₹ 22,000, vegetables by ₹ 32,000, medicines by ₹ 10,000, and novelties by ₹ 12,000.
Answer:
Year→
Section ↓ |
2014 | 2015 | 2016 | Total |
Grocery | 625000 | 675000 | 653000 | 1953000 |
Vegetables | 220000 | 242000 | 210000 | 672000 |
Medicines | 188000 | 175000 | 165000 | 528000 |
Textiles | 483000 | 536000 | 612000 | 1631000 |
Novelties | 94000 | 143000 | 131000 | 106000 |
Total | 1610000 | 1771000 | 1771000 | 5152000 |
Working notes:
2014-
We know,
Total sales = Grocery + Vegetables + Medicines + Textiles + Novelties
Assume the total sales to be x and textiles to be 30% of x.
Now, we solve for x,
$x=625000+220000+188000+94000+\frac{30}{100}\times x\phantom{\rule{0ex}{0ex}}x=1127000+\frac{30x}{100}\phantom{\rule{0ex}{0ex}}x=\frac{12700000+30x}{100}\phantom{\rule{0ex}{0ex}}100x=112700000+30x\phantom{\rule{0ex}{0ex}}70x=112700000\phantom{\rule{0ex}{0ex}}x=1610000$
Thus, the total sales is 1610000 and textiles will be 30% of x, i.e. 483000.
2015-
Total sales = 10% of x + x
or, Total sales = 161000 + 1610000 = 1771000
Grocery = 8% of 625000 + 625000 = 50000 + 625000 = 675000
Vegetables = 10% of 220000 + 220000 = 22000 + 220000 = 242000
Medicines dropped by 12000, so medicines = 175000
$\mathrm{Novelties}=1771000-675000-242000-175000-536000\phantom{\rule{0ex}{0ex}}=143000$
2016-
Total sales = 1771000
Grocery fell by 22000, so grocery = 653000
Vegetables fell by 32000, so vegetables = 210000
Medicines fell by 10000, so medicines = 165000
Novelties fell by 12000, so novelties = 131000
$\mathrm{Textiles}=1771000-653000-210000-165000-131000=612000$
Page No 83:
Question 8:
In a sample study about the coffee habits in two towns following data were observed:
Tabulate the observations.
Town A | : | 60% people were males |
40% were coffee drinkers, and | ||
26% were male coffee drinkers | ||
Town B | : | 55% people were males, |
30% were coffee drinkers and | ||
20% were males coffee drinkers |
Answer:
Habit ↓ | Town A | Town B | |||||
M | F | T | M | F | T | Total | |
Coffee Drinker | 26 | 14 | 40 | 20 | 10 | 30 | 70 |
Non-Coffee | 34 | 26 | 60 | 35 | 35 | 70 | 130 |
Total | 60 | 40 | 100 | 55 | 45 | 100 | 200 |
where,
M represents 'Male'
F represents 'Female'
T represents 'Total'
Page No 83:
Question 9:
Out of a total number of 5,000 people who applied for admission of their child in a school , 3,950 belong to general category and remaining belong to the EWS category . In EWS category 275 parents belong to service class and remaining were self-employed . The number of self employed applicants belonging to general category are 725. Tabulate the given information.
Answer:
Category→
Class ↓ |
General | EWS | Total |
Self Employed | 725 | 775 | 1500 |
Service | 3225 | 275 | 3500 |
Total | 3950 | 1050 | 5000 |
Page No 84:
Question 10:
Tabulate the given information.
• In 2016, out of a total of 1250 applicants in a college , 775 were from commerce background. The number of girls was 125, out of which 70 were from science stream.
• In 2017, the total number of applicants for commerce stream was 1390 of which 825 were boys. The number of students from science stream was 270, among which 110 were girls.
Answer:
Year↓ | Commerce | Science | Total | ||||
Boys | Girls | Total | Boys | Girls | Total | ||
2016 | 720 | 55 | 775 | 405 | 70 | 475 | 1250 |
2017 | 825 | 565 | 1390 | 160 | 110 | 270 | 1660 |
Page No 84:
Question 11:
Out of a total number of 1750 people, who applied for a job, 1150 were females . Out of total applicants, 1420 were graduates and others were post graduates . The number of male applicants who were post graduates were 250. Tabulate the given information .
Answer:
Education→
Gender ↓ |
Graduation | Post- Graduation |
Total |
Males | 350 | 250 | 600 |
Females | 1070 | 80 | 1150 |
Total | 1420 | 330 | 1750 |
Page No 84:
Question 12:
In 2011, out of 3000 union workers, 2500 were females. The number of non-union workers was 700, of which, 250 were men. In 2013, out of total 6,000 workers 4,4000 were members of union . The number of male workers was 1,650, out of which 500 did not belong to any union. Tabulate the given information.
Answer:
Year↓ | Union Workers | Non-Union Workers | Total | ||||
Male | Female | Total | Male | Female | Total | ||
2011 | 500 | 2500 | 3000 | 250 | 450 | 700 | 3700 |
2013 | 1150 | 3250 | 4400 | 500 | 1100 | 1600 | 6000 |
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