Introduction to Data Interpretation
Direction: Study the following table and answer the questions.
 The decrease in the number of candidates qualified under Arts discipline from 2010 to 2011 was

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According to given table, we have
Candidates qualified under arts discipline In 2010 = 900 × 19 = 171 100 Candidates qualified under arts discipline In 2011 = 850 × 18 = 153 100
Required difference = Candidates qualified under arts discipline In 2010  Candidates qualified under arts discipline In 2011
Correct Option: B
According to given table, we have
Candidates qualified under arts discipline In 2010 = 900 × 19 = 171 100 Candidates qualified under arts discipline In 2011 = 850 × 18 = 153 100
Required difference = Candidates qualified under arts discipline In 2010  Candidates qualified under arts discipline In 2011
∴ Required difference = 171 – 153 = 18
Direction: A table showing the percentage of the total population of a State by age groups for the year 1991 is given below. Answer the questions given below it.
 If the difference between the number of people in the age groups (46 – 55) and (26 – 35) is 11.75 millions, then the total population of the State is approximately :

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As per the given above table , we see
Difference in percent of people in the age groups (46 – 55) and (26 – 35) = 17.25 – 14.25 = 3%
Now, 3% of total Population = 11.75 millionCorrect Option: B
As per the given above table , we see
Difference in percent of people in the age groups (46 – 55) and (26 – 35) = 17.25 – 14.25 = 3%
Now, 3% of total Population = 11.75 million∴ Total Population = 11.75 × 100 = 391.67 millions (approx.) 3
 If there are 10 millions people in the age group 56 years and above, what is the difference between the number of people in the age group 16 – 25 and 46 – 55?

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On the basis of given table in question ,
Percent of population in the age group 56 years and above = 5.12 + 1.13 = 6.25
Now, 6.25% of population = 10 millions∴ Total Population = 10 × 100 millions = 160 millions 6.25
Difference in per cent of people in the age groups (16 – 25) and (46 – 55) = 17.75 – 14.25 = 3.5%
∴ The required difference = 3.5% of 160 millions
Correct Option: B
On the basis of given table in question ,
Percent of population in the age group 56 years and above = 5.12 + 1.13 = 6.25
Now, 6.25% of population = 10 millions∴ Total Population = 10 × 100 millions = 160 millions 6.25
Difference in per cent of people in the age groups (16 – 25) and (46 – 55) = 17.75 – 14.25 = 3.5%
∴ The required difference = 3.5% of 160 millionsThe required difference = 3.5 × 160 = 5.6 millions 100
 There are 200 million people below 36 years. How many millions (approx.) people are in the age group 56 – 65?

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As per the given above table , we see
Below 36 years, the percent of population is (30 + 17.75 + 17.25) = 65%
Number of people age group below 36 years = 200 millions
Percent of people in age group 56 – 65 = 5.12%Correct Option: B
As per the given above table , we see
Below 36 years, the percent of population is (30 + 17.75 + 17.25) = 65%
Number of people age group below 36 years = 200 millions
Percent of people in age group 56 – 65 = 5.12%∴ The required number of people = 200 × 5.12 millions = 15.75 millions 65
 Out of every 4200 persons, the number of persons below 26 years is :

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On the basis of given table in question ,
Below 26 years, the percent of population is (30 + 17.75) = 47.75%
Number of total persons = 4200
∴ The required answer = 47.75% of 4200Correct Option: A
On the basis of given table in question ,
Below 26 years, the percent of population is (30 + 17.75) = 47.75%
Number of total persons = 4200
∴ The required answer = 47.75% of 4200The required answer = 47.75 × 4200 = 2005.5 ≈ 2006 100