# Data Interpretation Practice Set - 7

Data Interpretation Practice Set - 7
Directions (1 – 5): The following table shows the population of a locality from 2011 to 2016. Study the information given in the table with some missing data and answer the given questions:

 Year Men Women Children Total Increase (+) / decrease (-) over the preceding year 2011 65104 60387 - 146947 - 2012 70391 62516 - - + 11630 2013 - 63143 20314 153922 - 4655 2014 69395 - 21560 - - 2015 71274 65935 23789 160998 - 2016 - 45000 - - - 5500
1. What is the approximate average population of men in the year 2011 to 2015?
(a) 45600
(b) 69326
(c) 72057
(d) 56879
(e) None of these
2. What is the approximate % difference between the total population of children in the year 2012 to 2014 and the total population of women in the year 2013 to 2015 with respect to later part?
(a) 50%
(b) 67%
(c) 64%
(d) 45%
(e) None of these
3. What is the percentage increase of men in 2016 from 2011, if total children in 2016 are half of that it is in 2014?
(a) 53.16%
(b) 49.78%
(c) 57.24%
(d) 56%
(e) None of these
4. What is the difference between the average number of men and women of all the years if men in 2016 are double that of children in the same year?
(a) 10112
(b) 9992
(c) 9807
(d) 10670
(e) 10947
5. What is the approximate percentage of women and children together in 2012 with respect to men and women in 2015?
(a) 56.37%
(b) 45.12%
(c) 59.85%
(d) 64.27%
(e) None of these
Directions (6 – 10): Study the following pie chart and answer the questions followed:
In the year 2016 the total number of laptops (Lenovo and HP) sold by 5 online sites = 80000 (Left Pie-Chart)
Total number of Lenovo laptops sold by five online sites = 32000 (Right Pie-Chart)
6. The total number of laptops Lenovo and HP both sold by Flipkart and eBay is what percent more than the total number of both laptops sold by Amazon and Snapdeal?
(a) 108%
(b) 188 1/3 %
(c) 105 2/3%
(d) 115 2/3%
(e) None of these
7. What is the difference between the corresponding angles of total laptops of both brands sold by Shopclues and eBay?
(a) 3°
(b) 10°
(c) 15°
(d) 12°
(e) None of these
8. What is the ratio of total number of laptops sold by HP by highest seller to lowest seller online site?
(a) 23:77
(b) 56:79
(c) 77:43
(d) 79:44
(e) None of these
9. If it is given that every year 10% increase takes place in the sale of both laptops by Snapdeal, then what will be its percent increase or decrease of Snapdeal next ear sale with respect to Flipkart sales of both laptops?
(a) -15%
(b) +25%
(c) +10%
(d) -12%
(e) None of these
10. What is the ratio of average number of laptops (HP) sold by Amazon, eBay and Flipkart to average number of laptops (Lenovo) sold by Shopclues, Snapdeal and eBay?
(a) 193:92
(b) 123:91
(c) 92:193
(d) 91:193
(e) None of these
Solutions:
(1 – 5): The filled table is used for answering questions from 1 to 5
 Year Men Women Children Total Increase (+) / decrease (-) over the preceding year 2011 65104 60387 21456 146947 - 2012 70391 62516 25670 158577 + 11630 2013 70465 63143 20314 153922 - 4655 2014 69395 57630 21560 148585 - 5337 2015 71274 65935 23789 160998 + 12413 2016 - 45000 - 155498 - 5500
1. B) Approximate Average number of men from 2011 to 2015
= 65104+70391+70465+69395+71274/5 = 69326
2. C) total children in year range 2012-2014 = 25670+20314+21560 = 67544
Total women in the year range 2013- 2015 = 63143+57630+65935 = 186708
Approximate % difference= (186708 −67544)/186708 100 64%
3. A) total children in 2016 = 21560/2 = 10780,
Total men in 2016 = 155498-(10780+45000) = 99718
% increase in population of men in 2016 w.r.t 2011 = (99718−65104)/65104 100 = 53.16%
4. E) average number of women = (60387+62516+63143+57630+65935+45000)/6 ≈ 59102
It is given in 2016 men is double of children so men = (155498−45000)/3 2 ≈ 73665
Therefore average men in all year = (65104+70391+70465+69395+71274+73665)/6 = 70049
Difference in averages = 70049-59102 = 10947
5. D) women and children in 2012 = 62516 + 25670 = 88186
Men and women in 2015 together = 71274+65935 = 137209
Required percentage = 88186/137209 100 = 64.27%
(6 – 10):
 Online Sites HP + Lenovo (80000) Lenovo (32000) HP Shopclues 15% = 12000 16% = 5120 (12000 – 5120) = 6880 Amazon 22% = 17600 30% = 9600 8000 eBay 18% = 14400 12% = 3840 10560 Snapdeal 20% = 16000 18% = 5760 10240 Flipkart 25% = 20000 24% = 7680 12320
6. A) Required % = 20000−9600/9600 100 108%
7. E) required angle = (20−18)/100 360 = 7.2°
8. C) number of HP laptops by highest seller is 12320 i.e. via Flipkart
Number of Hp laptops by lowest seller is 6880 via Shopclues, so the ratio = 12320/6880= 77/43
9. D) after 10% increase total laptops sold by Snapdeal = 16000*110/100 = 17600,
Total laptops sold by Flipkart = 20000,
%change = (20000−17600)/20000 100 = 12%,
Although 10% increase takes place next year in Snapdeal but it is 12% less than Flipkart sales in current year.
10. A) Required ratio = [(8000+12320 +10560/3)]/[(5120 +3840 +5760)/3] = 30880/14720 = 193/92