Introduction to Data Interpretation

Introduction to Data Interpretation

Easy Questions
Moderate Questions
Difficult Questions

Data Interpretation

Introduction to Data Interpretation
Table chart
Line chart
Pie chart
Bar graph
Mixed Graph
Data Sufficiency

Direction: The Bar Graph given here shows the population (in crores) of India in various census years. Observe the graph and answer the question based on it.

  1. In which census year, the percent increase in population is least as compared to that in the previous census year?








  1. View Hint View Answer Discuss in Forum

    As per the given bar graph in question ,
    Population in 1941 = 31.85 million
    Population in 1931 = 27.90 million
    Increase = (31.85 – 27.90) million = 3.95 million

    Percentage increase in 1941 = Increase × 100
    Population in 1931

    Percentage increase in 1941 =
    3.95 × 100
    		 = 14.16%
    27.90

    Again , Population in 1951 = 36.14 million
    Population in 1941 = 31.85 million
    Increase = ( 36.14 – 31.85 ) million = 4.29 million

    Correct Option: B

    As per the given bar graph in question ,
    Population in 1941 = 31.85 million
    Population in 1931 = 27.90 million
    Increase = (31.85 – 27.90) million = 3.95 million

    Percentage increase in 1941 = Increase × 100
    Population in 1931

    Percentage increase in 1941 =
    3.95 × 100
    		 = 14.16%
    27.90

    Again , Population in 1951 = 36.14 million
    Population in 1941 = 31.85 million
    Increase = ( 36.14 – 31.85 ) million = 4.29 million
    Percentage increase in 1951 = Increase × 100
    Population in 1941

    Percentage increase in 1951 =
    4.29 × 100
    		 × 100 = 13.47%
    31.85

    Hence, % increase is least in 1951

  1. In which census year, the percent increase in population is highest as compared to that in the previous census year?








  1. View Hint View Answer Discuss in Forum

    On the basis of given bar graph in question ,
    Percentage increase in 1981 = 24.8% ( From Previous question Answer )
    Population in 1971 = 54.80 million
    Population in 1961 = 43.92 million
    Increase = (54.80 – 43.92) million

    ∴ Percent Increase in 1971 =
    Increase
    		 × 100
    Population in 1961

    Correct Option: D

    On the basis of given bar graph in question ,
    Percentage increase in 1981 = 24.8% ( From Previous question Answer )
    Population in 1971 = 54.80 million
    Population in 1961 = 43.92 million
    Increase = (54.80 – 43.92) million

    ∴ Percent Increase in 1971 =
    Increase
    		 × 100
    Population in 1961

    Percentage increase in 1971 = 54.80 - 43.92 × 100 = 24.77%
    43.92

    Hence, increase is highest in 1981.

  1. The percent increase in population from 1971 to 1981 is








  1. View Hint View Answer Discuss in Forum

    As per the given bar graph in question ,
    Population in 1971 = 54.80 million
    Population in 1981 = 68.40 million
    Increase = (68.40 – 54.80) million = 13.6 million

    ∴ Increase% =
    Increase
    		 × 100
    Population in 1971

    Correct Option: A

    As per the given bar graph in question ,
    Population in 1971 = 54.80 million
    Population in 1981 = 68.40 million
    Increase = (68.40 – 54.80) million = 13.6 million

    ∴ Increase% =
    Increase
    		 × 100
    Population in 1971

    ∴ Increase% =
    13.6
    		 × 100 = 24.8 %
    54.80

Direction: Study the bar diagram given below carefully and answer the following questions based on it.

  1. By how much percent is the birth-rate of England less than the birth-rate of New Zealand?








  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    Birth–rate of England = 20
    Birth–rate of New Zealand = 30

    Required percentage =
    30
    		× 100 =
    100
    		 %
    303

    Correct Option: B

    On the basis of given graph in question ,
    Birth–rate of England = 20
    Birth–rate of New Zealand = 30

    Required percentage =
    30
    		× 100 =
    100
    		 %
    303

    Required percentage = 33
    1
    		%
    3

  1. What is the ratio of birth-rate of India to that of Sweden?








  1. View Hint View Answer Discuss in Forum

    As per the given bar graph in question ,
    Birth-rate of India = 33%
    Birth-rate of Sweden = 15%

    Required ratio =
    33
    15

    Correct Option: B

    As per the given bar graph in question ,
    Birth-rate of India = 33%
    Birth-rate of Sweden = 15%

    Required ratio =
    33
    15

    Required ratio =
    11
    		 = 11 : 5
    5