Introduction to Data Interpretation
Direction: In the following questions, a graphical representation of income and expenditure of 5 persons during the month of January has been given. Read the graph and answer the questions.
 What is the average income of five persons per month?

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From the given bar diagram , we see
Total income =$ 30.75 thousand
Number of persons = 5Average = Total income Number of persons
Correct Option: C
From the given bar diagram , we see
Total income =$ 30.75 thousand
Number of persons = 5Average = Total income Number of persons Average = 30.75 5
Average = $ 6.15 thousands = $ 6150
Direction: A health drink company prepares the drink of three different flavours P, Q, R. The production of three flavours over a period of six years has been expressed on bar graph provided below. Study the graph and answer the questions.
 What is the difference between the average production of flavour Q in 2008, 2009 and 2010 from that of flavour P in 2005, 2006 and 2007 (in lakh bottles)?

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On the basis of given graph in question ,
Total production of flavour Q in 2008, 2009 and 2010 = 55 + 50 + 55 = 160 lakh bottels
Number of given years = 3Average production of flavour Q during 2008, 2009 and 2010 = Total production of flavour Q in 2008, 2009 and 2010 Number of given years Average production of flavour Q during 2008, 2009 and 2010 = 160 lakh bottles 3
Total production of flavour P in 2005, 2006 and 2007 = 50 + 40 + 55 = 160 lakh bottels
Number of given years = 3Average production of flavour P in 2005, 2006 and 2007 = Total production of flavour P in 2005, 2006 and 2007 Number of given years Average production of flavour P in 2005, 2006 and 2007 = 145 lakh bottles 3
Correct Option: D
On the basis of given graph in question ,
Total production of flavour Q in 2008, 2009 and 2010 = 55 + 50 + 55 = 160 lakh bottels
Number of given years = 3Average production of flavour Q during 2008, 2009 and 2010 = Total production of flavour Q in 2008, 2009 and 2010 Number of given years Average production of flavour Q during 2008, 2009 and 2010 = 160 lakh bottles 3
Total production of flavour P in 2005, 2006 and 2007 = 50 + 40 + 55 = 160 lakh bottels
Number of given years = 3Average production of flavour P in 2005, 2006 and 2007 = Total production of flavour P in 2005, 2006 and 2007 Number of given years Average production of flavour P in 2005, 2006 and 2007 = 145 lakh bottles 3 Required difference = 160  145 3 3 Required difference = 15 = 5 lakh bottles 3
 What was the approximate decline in the production of flavour R in 2010 as compared to the production of 2008 in percentage?

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On the basis of given graph in question ,
The production of flavour R in 2010 = 40 lakh bottles
The production of flavour R in 2008 = 60 lakh bottles
Decrease = 60  40 = 20 lakh bottlesPercentage decrease = Decrease The production of flavour R in 2008
Correct Option: B
On the basis of given graph in question ,
The production of flavour R in 2010 = 40 lakh bottles
The production of flavour R in 2008 = 60 lakh bottles
Decrease = 60  40 = 20 lakh bottlesPercentage decrease = Decrease The production of flavour R in 2008 Percentage decrease = 60  40 × 100 = 33 1 % or 33.33% 60 3
 The average annual production of which flavour was maximum in the given period?

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As per the given bar graph , we have
Total production of Flavour P = 50 + 40 + 55 + 45 + 60 + 50 = 300 lakh bottles
Total production of Flavour Q = 55 + 60 + 50 + 55 + 50 + 55 = 325 lakh bottles
Total production of Flavour R = 45 + 50 + 60 + 60 + 45 + 40 = 300 lakh bottlesCorrect Option: B
As per the given bar graph , we have
Total production of Flavour P = 50 + 40 + 55 + 45 + 60 + 50 = 300 lakh bottles
Total production of Flavour Q = 55 + 60 + 50 + 55 + 50 + 55 = 325 lakh bottles
Total production of Flavour R = 45 + 50 + 60 + 60 + 45 + 40 = 300 lakh bottles
Hence , the average annual production of Q flavour is maximum in the given period .
 The percentage of the total production of flavour R in 2007 and 2008 with respect to the production of flavour P in 2005 and 2006 is :

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According to given bar graph , we have
Total production of flavour R in 2007 and 2008 = 60 + 60 = 120
Total production of flavour P in 2005 and 2006 = 50 + 40 = 90Required percentage = Total production of flavour R in 2007 and 2008 × 100 Total production of flavour P in 2005 and 2006
Correct Option: C
According to given bar graph , we have
Total production of flavour R in 2007 and 2008 = 60 + 60 = 120
Total production of flavour P in 2005 and 2006 = 50 + 40 = 90Required percentage = Total production of flavour R in 2007 and 2008 × 100 Total production of flavour P in 2005 and 2006 Required percentage = 120 × 100 = 133.3% 90