Pie chart


Direction: Study the pie-charts carefully to answer the questions that follow.

  1. Which college has the maximum number of boys?









  1. View Hint View Answer Discuss in Forum

    As per first graph,
    The number of students in Collage A = Total number of students x 21%
    As per second graph,
    The number of girls from College A = Total number of girls x 23%

    So number of boys in Collage A = The total number of students in Collage A - The total number of girls in Collage A.
    Similarly for other collage also apply the same formula.

    Correct Option: C

    As per first graph,
    The number of students in Collage A = Total number of students x 21%
    As per second graph,
    The number of girls from College A = Total number of girls x 23%
    So number of boys in Collage A = The total number of students in Collage A - The total number of girls in Collage A.
    Number of boys in college A = 3500 x 21/100 - 1800 x 23/100 = 735 - 414 = 321
    Similarly we can get the number of boys from other collages.
    Number of boys in college B = 3500 x 9/100 - 1800 x 10/100 = 315 - 180 = 135
    Number of boys in college C = 3500 x 33/100 - 1800 x 31/100 = 1155 - 558 = 597
    Number of boys in college D = 3500 x 18/100 - 1800 x 11/100 = 630 - 198 = 432
    Hence, number of boys in college C has maximum.


  1. Which college has lowest number of girls?









  1. View Hint View Answer Discuss in Forum

    It is clear from the pie-chat that percentage of students in college E and percentage of girls in collage is minimum.

    Correct Option: C

    It is clear from the pie-chat that percentage of students in college E and percentage of girls in collage is minimum.
    Hence, college E has lowest number of girls.



  1. What is the number of girls in college D?









  1. View Hint View Answer Discuss in Forum

    As per second graph,
    Total number of girls = 1800
    Number of girls in College D = Total Number of Girls x 11%

    Correct Option: D


    As per second graph,
    Total number of girls = 1800
    Number of girls in College D = Total Number of Girls x 11%
    ⇒ Number of girls in College D = 1800 x 11%
    ⇒ Number of girls in College D = 1800 x 11/100
    ⇒ Number of girls in College D = 18 x 11 = 198


  1. What is the total number of boys from Colleges E and F together?









  1. View Hint View Answer Discuss in Forum

    As per first graph,
    The number of students in Collage E = Total number of students x 7%
    As per second graph,
    The number of girls from College E = Total number of girls x 8%
    So number of boys in Collage E = The total number of students in Collage E - The total number of girls in Collage E.
    Similarly for other collage also apply the same formula.

    Correct Option: A

    As per first graph,
    The number of students in Collage E = Total number of students x 7%
    As per second graph,
    The number of girls from College E = Total number of girls x 8%
    So number of boys in Collage E = The total number of students in Collage E - The total number of girls in Collage E.
    Number of boys from college E = 3500 x 7/100 - 1800 x 8/100
    Number of boys from college E = 35 x 7 - 18 x 8
    Number of boys from college E = 245 - 144 = 101
    Similarly for collage F also apply the same formula.
    Number of boys from college F = 3500 x 12/100 - 1800 x 17/100 = 420 - 306 = 114
    Hence, the total number of boys together in collage E and F = 101 + 114 = 215



  1. The number of boys from College A form what per cent of total number of students from that college?









  1. View Hint View Answer Discuss in Forum

    As per first graph,
    The number of students in Collage A = Total number of students x 21%
    As per second graph,
    The number of girls form College A = Total number of girls x 23%

    Correct Option: C

    As per first graph,
    The number of students in Collage A = Total number of students x 21%
    The number of students in Collage A = 3500 x 21/100
    The number of students in Collage A = 35 x 21 = 735
    As per second graph,
    The total number of girls from College A = Total number of girls x 23%
    The total number of girls from College A = 1800 x 23/100
    The total number of girls from College A = 18 x 23 = 414
    Number of boys from college A = Total number of students in Collage A - The total number of girls from College A
    Since, number of boys from college A = 735 - 414 = 321
    Required percentage = 100 x Number of Boys from Collage A / Total number of boys in collage A
    Required percentage = 100 x 321/735
    Required percentage = 2140/49 = 43.67%