Introduction to Data Interpretation


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. 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


  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. 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. The time spent to study history and chemistry is 4 hours 30 minutes, Then the student studied physics for









  1. View Hint View Answer Discuss in Forum

    Given , Time spent in studying history and chemistry = 4
    1
    hours.
    2

    As per the given pie chart in question ,
    The corresponding percentage of studying physics = 20%
    The corresponding percentage of studying history and chemistry = (15 + 15)% = 30%
    ∵ 30% ≡
    9
    hours
    2


    Correct Option: D

    Given , Time spent in studying history and chemistry = 4
    1
    hours.
    2

    As per the given pie chart in question ,
    The corresponding percentage of studying physics = 20%
    The corresponding percentage of studying history and chemistry = (15 + 15)% = 30%
    ∵ 30% ≡
    9
    hours
    2

    Now ,
    ∴ 20% ≡
    9 × 20
    = 3 hours
    2 × 30


Direction: The following pie chart shows the export of automobiles of India to the 10 countries given below in 2014. The 10 countries imported 47.8% of the total export of India. Observe the chart given below and answer the following question :

  1. What is the corresponding angle to the exports for Turkey?









  1. View Hint View Answer Discuss in Forum

    On the basis of given pie chart in question ,
    Percent of exports for Turkey = 4%
    We know that , 100% ≡ 360°

    ∴ 1% ≡
    360
    100

    Correct Option: A

    On the basis of given pie chart in question ,
    Percent of exports for Turkey = 4%
    We know that , 100% ≡ 360°

    ∴ 1% ≡
    360
    100

    ∴ 4% ≡
    360 × 4
    = 14.4°
    100