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 following bar-diagram shows total number of males and females in five different organisations. Study it carefully to answer the questions.

  1. By how much percentage is the average number of females from all the organisations together is more than the number of males in organisation ‘D’?








  1. View Hint View Answer Discuss in Forum

    As per the given bar graph , we have
    Total number of women = 3000 + 3500 + 4000 + 1500 + 3700 = 15700
    Number of organisation = 5

    Average number of women =
    Total number of women
    Number of organisation

    Average number of women =
    15700
    		 = 3140
    5

    Number of men in organisation D = 2250
    Difference = 3140 - 2250 = 890

    Correct Option: C

    As per the given bar graph , we have
    Total number of women = 3000 + 3500 + 4000 + 1500 + 3700 = 15700
    Number of organisation = 5

    Average number of women =
    Total number of women
    Number of organisation

    Average number of women =
    15700
    		 = 3140
    5

    Number of men in organisation D = 2250
    Difference = 3140 - 2250 = 890
    Required percent =
    Difference
    		 × 100
    Number of men in organisation D

    Required percent =
    890
    		 × 100 ≈ 40%
    2250

  1. What is the difference between the total number of females and the total number of males from all the organisations together?








  1. View Hint View Answer Discuss in Forum

    According to given bar graph , we have
    Total number of men = (3500 + 4500 + 4700 + 2250 + 3250) = 18200
    Total number of women = 3000 + 3500 + 4000 + 1500 + 3700 = 15700
    Required difference = Total number of men - Total number of women

    Correct Option: C

    According to given bar graph , we have
    Total number of men = (3500 + 4500 + 4700 + 2250 + 3250) = 18200
    Total number of women = 3000 + 3500 + 4000 + 1500 + 3700 = 15700
    Required difference = Total number of men - Total number of women
    Required difference = 18200 – 15700 = 2500

Direction: Student strengths of a college in Arts, Science and Commerce from 2004-2005 to 2007-2008 session are shown in the following bar graph. Study the graph and answer the questions that follow.

  1. Percentage increase in total number of students in 2007-2008 session over that in 2004-2005 session is approximately








  1. View Hint View Answer Discuss in Forum

    As per the given bar graph , we have
    Total number of students in session 2004-05 ⇒ 600 + 400 + 200 = 1200
    Total number of students in session 2007-08 ⇒ 700 + 500 + 250 = 1450
    Total increase = 1450 - 1200 = 250

    Percentage increase = Total increase × 100
    Total number of students in session 2004-05

    Correct Option: D

    As per the given bar graph , we have
    Total number of students in session 2004-05 ⇒ 600 + 400 + 200 = 1200
    Total number of students in session 2007-08 ⇒ 700 + 500 + 250 = 1450
    Total increase = 1450 - 1200 = 250

    Percentage increase = Total increase × 100
    Total number of students in session 2004-05

    Percentage increase = 250 × 100 = 20.83%
    1200

  1. Approximate percentage of students in Science stream during the session 2006-2007 is :










  1. View Hint View Answer Discuss in Forum

    According to given bar graph , we have
    Total number of students in during 2006-07 = 550 + 450 + 300 = 1300
    Number of students in Science during 2006-2007 = 450

    ∴ Required percent =
    Number of students in Science during 2006-2007
    		 × 100
    Total number of students in during 2006-07

    Correct Option: E

    According to given bar graph , we have
    Total number of students in during 2006-07 = 550 + 450 + 300 = 1300
    Number of students in Science in 2006-2007 = 450

    ∴ Required percent =
    Number of students in Science during 2006-2007
    		 × 100
    Total number of students in during 2006-07

    ∴ Required percent =
    450
    		× 100 =
    450
    		 = 34.6 %
    130013

  1. The increase in the number of Arts students in 2007-2008 session over that in 2005-2006 session is :








  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    Number of Arts students in 2007-2008 = 700
    Number of Arts students in 2005-2006 = 550
    Total increase = 700 - 550 = 150

    Required percentage increase = Total increase × 100
    Number of Arts students in 2005-2006

    Correct Option: C

    On the basis of given graph in question ,
    Number of Arts students in 2007-2008 = 700
    Number of Arts students in 2005-2006 = 550
    Total increase = 700 - 550 = 150

    Required percentage increase = Total increase × 100
    Number of Arts students in 2005-2006

    Required percentage increase =
    150
    		 × 100 = 27.27%
    550