Pie charts are a common type of data visualization used in data interpretation.
Here are some tips and tricks to solve pie chart questions:
Pie charts are a type of chart used to represent fractions as parts of a whole. They are commonly used to compare data and analyze which data is bigger or smaller. Pie charts are preferred when dealing with discrete data.
Here are some uses of pie charts:
To show percentages of a whole.
To represent sample data with data points belonging to different categories.
To compare areas of growth within a business, such as turnover, profit, and exposure.
To represent categorical data.
To show the performance of a student in a test.
Direction (Q1 - Q5): Refer to the pie chart given below and answer the questions that follow.
The given pie chart shows the marks scored by a students of G.D.Goenka School in different subjects- English, Hindi, Mathematics, Science and Social Science in an examination. The values given are in degrees.
Assumption: Total marks obtained in the examination are 900.
Q1: The difference of marks scored in Social Science and Science by students of G.D.Goenka School is
Q2: The Marks scored by the student of G.D.Goenka School in English and Mathematics is less than the marks scored in Science and Hindi by
(a) 5%
(b) 4.33%
(c) 3.33%
(d) 6%
Ans: c
Sol:
Marks scored in English and Mathematics = (55 + 90 ) / 360 x 900 = 362.5
Marks scored in Hindi and Science = (70 + 80) / 360 x 900 = 375
Percent decrease = 12.5 / 375 x 100 = 3.33
Q4: If the total marks of student of G.D.Goenka School were 3000, then marks in Mathematics would be
(a) 800
(b) 750
(c) 850
(d) 900
Ans: b
Sol: Marks obtained in Mathematics would be = 90 / 360 x 3000 = 750
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