Introduction to Data Interpretation
Direction: The following graph shows the production of wheat flour (in 1000 tonnes) by three companies X, Y and Z over the years. Study the graph and answer the questions.
 The average production for five years was maximum for which company (s)?

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From the given bar diagram , we see
Total production of Company X = 300 + 450 + 250 + 500 + 400 = 1900
Number of years = 5Average production of Company X = Total production of Company X Number of years Average production of Company X = 1900 = 380 thousand tonnes 5
Total production of Company Y = 250 + 350 + 350 + 400 + 500 = 1850
Number of years = 5Average production of Company Y = Total production of Company Y Number of years Average production of Company Y = 1800 = 370 thousand tonnes 5
Total production of Company Z = 350 + 400 + 450 + 350 + 350 = 1900
Number of years = 5Average production
of Company Z =Total production of Company Z Number of years
Correct Option: A
From the given bar diagram , we see
Total production of Company X = 300 + 450 + 250 + 500 + 400 = 1900
Number of years = 5Average production of Company X = Total production of Company X Number of years Average production of Company X = 1900 = 380 thousand tonnes 5
Total production of Company Y = 250 + 350 + 350 + 400 + 500 = 1850
Number of years = 5Average production of Company Y = Total production of Company Y Number of years Average production of Company Y = 1800 = 370 thousand tonnes 5
Total production of Company Z = 350 + 400 + 450 + 350 + 350 = 1900
Number of years = 5Average production
of Company Z =Total production of Company Z Number of years Average production
of Company Z =1900 = 380 thousand tonnes 5
∴ X & Z has maximum production
 What is the percentage increase in the production of company Y from 2002 to 2003?

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On the basis of given graph in question ,
The production of company Y in 2002 = 350 (in 1000 tonnes )
The production of company Y in 2003 = 450 (in 1000 tonnes )
Increase = 450  350 = 100 (in 1000 tonnes )Required percentage increase = Increase × 100 = 100 % The production of company Y in 2002 7
Correct Option: A
On the basis of given graph in question ,
The production of company Y in 2002 = 350 (in 1000 tonnes )
The production of company Y in 2003 = 450 (in 1000 tonnes )
Increase = 450  350 = 100 (in 1000 tonnes )Required percentage increase = Increase × 100 = 100 % The production of company Y in 2002 7 Required percentage increase = 14 2 % 7
 What is the ratio of the average production of company X in the period 20022004 to the average production of company Y in the same period?

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From the given bar diagram , we see
Total production of company X in the period 20022004 = 250 + 500 + 400 = 1150
Total production of company Y in the period 20022004 = 350 + 400 + 500 = 1250
Number of given years = 3Required ratio = 250 + 500 + 400 : 350 + 400 + 500 3 3
Correct Option: C
From the given bar diagram , we see
Total production of company X in the period 20022004 = 250 + 500 + 400 = 1150
Total production of company Y in the period 20022004 = 350 + 400 + 500 = 1250
Number of given years = 3Required ratio = 250 + 500 + 400 : 350 + 400 + 500 3 3
Required ratio = 1150 : 1250 = 23 : 25
 What is the difference between the production of company Z in 2004 and company Y in 2000 (in thousand tonnes)?

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According to given bar graph , we have
The production of company Z in 2004 = 350 × thousand tonnes
And The production of company Y in 2000 = 250 × thousand tonnes
Required difference = (350 – 250) × thousand tonnesCorrect Option: A
According to given bar graph , we have
The production of company Z in 2004 = 350 × thousand tonnes
And The production of company Y in 2000 = 250 × thousand tonnes
Required difference = (350 – 250) × thousand tonnes
Required difference = 100 thousand tonnes
Direction: The following graph shows the production of cotton bales of 100 kg each (in lakhs) by different states A, B, C, D and E over the years. Study the graph and answer the following Questions.
 The number of States for which the production of cotton in 2005 2006 is less than or equal to the preceding year is

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From the given bar diagram , we see
The production of cotton in state B in 2005 2006 = 21 lakh
The production of cotton in state B in 2005 2006 = 7 lakhCorrect Option: B
From the given bar diagram , we see
The production of cotton in state B in 2005 2006 = 21 lakh
The production of cotton in state B in 2005 2006 = 7 lakh
Hence , Required states are B and E.