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: Read the following pie–charts carefully to answer the questions.

  1. What is the central angle corresponding to the sale of Hindi newspapers in locality E?








  1. View Hint View Answer Discuss in Forum

    As per the given pie chart in question ,
    Sales of Hindi News Papers in locality E = 4000
    Total sales of Hindi News Papers = 3500 + 2400 + 3600 + 2500 + 4000 = 16000

    Required central angle =
    Sales of Hindi News Papers in locality E
    		 × 360°
    Total sales of Hindi News Papers

    Correct Option: B

    As per the given pie chart in question ,
    Sales of Hindi News Papers in locality E = 4000
    Total sales of Hindi News Papers = 3500 + 2400 + 3600 + 2500 + 4000 = 16000

    Required central angle =
    Sales of Hindi News Papers in locality E
    		 × 360°
    Total sales of Hindi News Papers

    Required central angle =
    4000
    		× 360° = 90°
    16000

Direction: The numbers of different colleges in India in different years is given in the graph below. Per cent distribution of different colleges in year 1980 and 1990 is shown in pie chart

  1. What is the % increment in the number of colleges from 1960 to 1980?








  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    Number of colleges in 60’s = 5000
    Number of colleges in 80’s = 20000

    Required percentage increase = 20000 - 5000 = 300%
    5000

    Correct Option: A

    On the basis of given graph in question ,
    Number of colleges in 60’s = 5000
    Number of colleges in 80’s = 20000

    Required percentage increase = 20000 - 5000 = 300%
    5000

    Required percentage increase =
    15000 × 100
    		 = 300%
    5000

  1. By what percent is the number of medical colleges in 1980 less than that in 1980?








  1. View Hint View Answer Discuss in Forum

    According to given graph and pie chart in question ,
    Percent of Medical colleges in 80’s = 12%
    Number of colleges in 80’s = 20000
    Percent of Medical colleges in 90’s = 8%
    Number of colleges in 90’s = 40000

    Number of Medical colleges in 1980 = 20000 ×
    12
    		 = 2400
    100

    Number of Medical colleges in 1990 =
    40000 × 8
    		= 3200
    100

    ∴ Required percent = 3200 - 2400 × 100
    3200


    Correct Option: A

    According to given graph and pie chart in question ,
    Percent of Medical colleges in 80’s = 12%
    Number of colleges in 80’s = 20000
    Percent of Medical colleges in 90’s = 8%
    Number of colleges in 90’s = 40000

    Number of Medical colleges in 1980 = 20000 ×
    12
    		 = 2400
    100

    Number of Medical colleges in 1990 =
    40000 × 8
    		= 3200
    100

    ∴ Required percent = 3200 - 2400 × 100
    3200

    Required percent =
    800
    		 = 25%
    32

  1. What is the average number of colleges for the given years?








  1. View Hint View Answer Discuss in Forum

    According to given graph in question ,
    Number of colleges in 1960 = 5000
    Number of colleges in 1970 = 10000
    Number of colleges in 1980 = 20000
    Number of colleges in 1990 = 40000
    Number of colleges in 2000 = 80000
    Sum of Number of colleges from 1960 t0 2000 = 5000 + 10000 + 20000 + 40000 + 80000
    Total number of years = 5

    Correct Option: B

    According to given graph in question ,
    Number of colleges in 1960 = 5000
    Number of colleges in 1970 = 10000
    Number of colleges in 1980 = 20000
    Number of colleges in 1990 = 40000
    Number of colleges in 2000 = 80000
    Sum of Number of colleges from 1960 t0 2000 = 5000 + 10000 + 20000 + 40000 + 80000
    Total number of years = 5

    Required average =
    ( 5 + 10 + 20 + 40 + 80) × 1000
    5

    Required average =
    155000
    		= 31000
    5

Direction: The pie- chart shows the percentage of literate and illiterate males and females in a state. Study the diagram and answer the following questions.

  1. If the total number is 35000, then the difference between the number of literate males and that of literate females is








  1. View Hint View Answer Discuss in Forum

    On the basis of given pie chart in question ,
    Percent of literate males = 45%
    Percent of literate females = 35%
    Total number of males and females = 35000

    Literate males = 35000 ×
    45
    		= 15750
    100

    Correct Option: A

    On the basis of given pie chart in question ,
    Percent of literate males = 45%
    Percent of literate females = 35%
    Total number of males and females = 35000

    Literate males = 35000 ×
    45
    		= 15750
    100

    Literate females = 35000 ×
    35
    		= 12250
    100

    Required difference = 15750 – 12250 = 3500