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 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. The difference in number of management colleges in 1980 to 1990 is :








  1. View Hint View Answer Discuss in Forum

    On the basis of given graph and pie chart in question ,
    Percent of Management colleges in 80’s = 10%
    Number of colleges in 80’s = 20000
    Percent of Management colleges in 90’s = 19%
    Number of colleges in 90’s = 40000

    Number of Management colleges in 80’s =
    20000 × 10
    		= 2000
    100

    Correct Option: C

    On the basis of given graph and pie chart in question ,
    Percent of Management colleges in 80’s = 10%
    Number of colleges in 80’s = 20000
    Percent of Management colleges in 90’s = 19%
    Number of colleges in 90’s = 40000

    Number of Management colleges in 80’s =
    20000 × 10
    		= 2000
    100

    Number of Management colleges in 90’s =
    40000 × 19
    		 = 7600
    100

    Required difference = 7600 – 2000 = 5600

Direction: The following pie-chart shows the study time of different subjects of a student in a day. Study the pie–chart and answer the following questions

  1. If the student studied chemistry for 3 hours, then he/she studied geography for








  1. View Hint View Answer Discuss in Forum

    On the basis of given pie chart in question ,
    The student studied chemistry = 3 hours
    Percent of studying chemistry students = 15%
    Percent of studying geography students = 10%
    ∵ 15% ≡ 3 hours

    Correct Option: B

    On the basis of given pie chart in question ,
    The student studied chemistry = 3 hours
    Percent of studying chemistry students = 15%
    Percent of studying geography students = 10%
    ∵ 15% ≡ 3 hours

    ∴ 10% ≡
    3
    		 × 10 = 2 hours
    15

  1. If the student studied 10 hours in a day, then he/she studied mathematics for








  1. View Hint View Answer Discuss in Forum

    As per the given pie chart in question ,
    Percent of studying given all subject by students = 100%
    Percent of studying mathematics students = 30%
    The student studied in a day = 10 hours
    ∵ 100% ≡ 10 hours

    ∴ 1% =
    10
    100

    Correct Option: A

    As per the given pie chart in question ,
    Percent of studying given all subject by students = 100%
    Percent of studying mathematics students = 30%
    The student studied in a day = 10 hours
    ∵ 100% ≡ 10 hours

    ∴ 1% =
    10
    100

    ∴ 30% ≡
    10
    		 × 30 = 3 hours
    100

  1. Instead of 10%, if the student spends 15% to study other subjects and the time is taken from the time scheduled to study mathematics and if he/she used to study 20 hours per day, then the difference of time for studying mathematics per day is :








  1. View Hint View Answer Discuss in Forum

    On the basis of given pie chart in question ,
    Percent of studying Maths students = 30%
    Time spent in mathematics in a day = 20 hours

    Usual time spent in studying Maths =
    2
    		 × 30 = 6 hours
    100

    Usual time spent in studying other subjects =
    10
    		× 20 = 2 hours
    100

    Correct Option: C

    On the basis of given pie chart in question ,
    Percent of studying Maths students = 30%
    Time spent in mathematics in a day = 20 hours

    Usual time spent in studying Maths =
    2
    		 × 30 = 6 hours
    100

    Usual time spent in studying other subjects =
    10
    		× 20 = 2 hours
    100

    New time spent in studying other subjects =
    15 × 20
    		 = 3 hours
    100

    Difference = New time spent in studying other subjects - Usual time spent in studying other subjects
    Difference = 3 – 2 = 1 hours

Direction: The Pie- chart shows the result of a survey among 119060 people concerning the use of tobacco. Study the Pie-chart and answer the questions.

  1. Let P be the percentage of people using Cigarettes, Pipe and Bidi as their smoking means and Q be the percentage of people using other means as their smoking habits. Then P is more than Q by :








  1. View Hint View Answer Discuss in Forum

    As per the given pie chart in question ,
    Corresponding angle for cigarette, pipe and bidi users = 180° + 36° + 90° = 306°
    Corresponding angle for other product consumers = 36°
    Difference = Corresponding angle for cigarette, pipe and bidi users - Corresponding angle for other product consumers = 306 – 36 = 270°
    As we know that , 360° ≡ 100%

    Correct Option: D

    As per the given pie chart in question ,
    Corresponding angle for cigarette, pipe and bidi users = 180° + 36° + 90° = 306°
    Corresponding angle for other product consumers = 36°
    Difference = Corresponding angle for cigarette, pipe and bidi users - Corresponding angle for other product consumers = 306 – 36 = 270°
    As we know that , 360° ≡ 100%

    ∴ 270° ≡
    100
    		× 270 = 75%
    360