Pie chart

Pie chart

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Data Interpretation

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

Direction: Study the following Pie-chart carefully and answer the questions given below:

  1. What is the respective ratio of men to women working in night shifts from the Call center Industry?








  1. View Hint View Answer Discuss in Forum

    Number of people working in night shifts from Call Center Industry = Total number of people working in industries x 32%
    Then Number of females working in night shifts from Call Center Industry = Number of people working in night shifts from Call Center Industry x 45%

    Correct Option: B

    As per first graph given in the question,
    Number of people working in night shifts from Call Center Industry = Total number of people working in industries x 32%
    Number of people working in night shifts from Call Center Industry = 40250 x 32/100 = 12880
    As per second graph given in the question,
    Then Number of females working in night shifts from Call Center Industry = Number of people working in night shifts from Call Center Industry x 45%
    Number of women working in night shifts from Call Center Industry = 12880
    x 45/100 = 5796
    So, the number of men working from call center Industry = 12880 - 5796 = 7084
    Hence, Required ratio = 7084 : 5796 = 11 : 9

Direction: Study the following Graph carefully and answer the questions given below.
Percentage of students in various courses (A, B, C, D, E, F) and Percentage of girls out of these.
Total students = 1200 (800 girls + 400 boys)

  1. For course D what is the respective ratio of boys and girls?








  1. View Hint View Answer Discuss in Forum

    As per first graph,
    The number of students for course D = Total number of students x 20%
    As per second graph,
    The number of girls for course D = Total number of girls x 30%
    Number of boys in course 'D' = The number of students for course D - The number of girls for course D

    Correct Option: A

    As per first graph,
    The number of students for course D = Total number of students x 20%
    As per second graph,
    The number of girls for course D = Total number of girls x 30%
    Number of boys in course D = The number of students for course D - The number of girls for course D
    Number of boys = ( 1200 x 35/100 ) - ( 800 x 30/100 ) = 420 - 240 = 180
    Number of girls = 800 x 30/100 = 240
    Since, required ratio = 180 : 240 = 3 : 4

  1. For which course is the number of boys the minimum?








  1. View Hint View Answer Discuss in Forum

    As per first graph,
    The number of students for course A = Total number of students x 20%
    As per second graph,
    The number of girls for course A = Total number of girls x 30%
    Number of boys in course 'A' = The number of students for course A - The number of girls for course A

    Correct Option: A

    As per first graph,
    The number of students for course A = Total number of students x 20%
    As per second graph,
    The number of girls for course A = Total number of girls x 30%
    Number of boys in course 'A' = The number of students for course A - The number of girls for course A
    Number of boys in course 'A' = (1200 x 20/100 ) - ( 800 x 30/100 ) = 240 - 240 = 0
    Number of boys in course 'C' = (1200 x 5/100 ) - (800 x 2/100) = 60 - 16 = 44
    Number of boys in course 'E' = (1200 x 12/100 ) - 800 x 14/100 ) = 144 - 112 = 32
    Number of boys in course 'F' = (1200 x 13/100 ) - ( 800 x 14/100 ) = 156 - 112 = 44
    Hence, in course 'A' number of boys is minimum which is Zero.

  1. For course E, the number of girls is how much percent more than the boys for course E?








  1. View Hint View Answer Discuss in Forum

    For course E,
    Number of boys = ( 1200 x 12/100 ) - (800 x 14/100 ) = 144 - 112 = 32

    Correct Option: C

    For course E,
    Number of boys = ( 1200 x 12/100 ) - (800 x 14/100 ) = 144 - 112 = 32
    Number of girls = 800 x 14/100 = 112
    Required percentage = ( (112 - 32 )/32 ) x 100 = (80/32) x 100 = 250%

  1. For which pair of courses is the number of boys the same?








  1. View Hint View Answer Discuss in Forum

    As per first graph,
    The number of students for course A = Total number of students x 20%
    As per second graph,
    The number of girls for course A = Total number of girls x 30%
    Number of boys in course 'A' = The number of students for course A - The number of girls for course A

    Same formula can apply for the other courses also.

    Correct Option: A

    As per first graph,
    The number of students for course A = Total number of students x 20%
    As per second graph,
    The number of girls for course A = Total number of girls x 30%
    Number of boys in course 'A' = The number of students for course A - The number of girls for course A
    Number of boys in course 'A' = (1200 x 20/100 ) - ( 800 x 30/100 ) = 240 - 240 = 0
    Similarly,
    Number of boys in course 'B' = (1200 x 15/100 ) - (800 x 10/100) = 180 - 80 = 100
    Number of boys in course 'C' = (1200 x 5/100 ) - (800 x 2/100) = 60 - 16 = 44
    Number of boys in course 'D' = (1200 x 35/100 ) - (800 x 30/100) = 420 - 240 = 180
    Number of boys in course 'E' = (1200 x 12/100 ) - 800 x 14/100 ) = 144 - 112 = 32
    Number of boys in course 'F' = (1200 x 13/100 ) - ( 800 x 14/100 ) = 156 - 112 = 44
    Hence, number of boys in course 'C' and 'F' are same which is 44.