Introduction to Data Interpretation
 In the following table yearwise ratio of number of taxable and nontaxable products produced by a company has been shown. The total production of the company increases by 10% every year.
Find the ratio of taxable products produced in year 2011 and 2012 and nontaxable products produced in years 2011 and 2012.

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According to given table, we have
In 2011, Taxable products = 4y
Nontaxable products = yIn 2012, Total products = 5y × 110 100 Total products = 11y 2 Taxable products = 11y × 2 2 5 Taxable products = 11y 5 Nontaxable products = 11y × 3 = 33y 2 5 10
Correct Option: B
According to given table, we have
In 2011, Taxable products = 4y
Nontaxable products = yIn 2012, Total products = 5y × 110 100 Total products = 11y 2 Taxable products = 11y × 2 2 5 Taxable products = 11y 5 Nontaxable products = 11y × 3 = 33y 2 5 10 ∴ Required ratio = 4y + 11y : y + 33y 5 10 Required ratio = 20y + 11y : 10y + 33y 5 10 Required ratio = 31y : 43y = 62 : 43 5 10
Direction: Study the following data and answer the questions.
 The number of students whose IQ score is 100 and more is

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On the basis of given table in question ,
Number of students whose IQ score in interval 100110 = 16
Number of students whose IQ score in interval 110120 = 13
Number of students whose IQ score in interval 120130 = 4
Number of students whose IQ score in interval 130140 = 2Correct Option: B
On the basis of given table in question ,
Number of students whose IQ score in interval 100110 = 16
Number of students whose IQ score in interval 110120 = 13
Number of students whose IQ score in interval 120130 = 4
Number of students whose IQ score in interval 130140 = 2
Total number of students whose IQ score is 100 and more = 16 + 13 + 4 + 2 = 35
 Number of students whose IQ score is 140 is

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As per the given above table , we see
Number of students whose IQ score 130–140 ⇒ 2
Number of students whose IQ score of 140 ⇒ Given data is not sufficient for answer .Correct Option: A
As per the given above table , we see
Number of students whose IQ score 130–140 ⇒ 2
Number of students whose IQ score of 140 ⇒ Given data is not sufficient for answer .
Hence , option A is correct answer .
Direction: Study the following frequency polygon and answer the questions. Given a line graph showing the number of students passed in Higher Secondary Examination in a school over the years 2008 to 2013.
 The decrease in percentage of passed students from 2011 to 2012 approximately is

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According to given table, we have
Number of passed students in 2011 = 170
Number of passed students in 2012 = 156
Decrease = 170  156 = 14Required percentage decrease = Decrease × 100 Number of passed students in 2011
Correct Option: C
According to given table, we have
Number of passed students in 2011 = 170
Number of passed students in 2012 = 156
Decrease = 170  156 = 14Required percentage decrease = Decrease × 100 Number of passed students in 2011 Required percentage decrease = 14 × 100 = 8.24% 170
 The increase in percentage of passed students from 2008 to 2011 approximately is

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As per the given above table , we see
Number of passed students in 2008 = 110
Number of passed students in 2011 = 170
Increase = 170  110 = 60Required percentage increase = Increase × 100 Number of passed students in 2008
Correct Option: C
As per the given above table , we see
Number of passed students in 2008 = 110
Number of passed students in 2011 = 170
Increase = 170  110 = 60Required percentage increase = Increase × 100 Number of passed students in 2008 Required percentage increase = 60 × 100 = 54.5% 110