Introduction to Data Interpretation

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.

1. The average production for five years was maximum for which company (s)?

1. From the given bar diagram , we see
Total production of Company X = 300 + 450 + 250 + 500 + 400 = 1900
Number of years = 5

 Average 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 = 5
 Average 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 = 5
 Average 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 = 5

 Average 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 = 5
 Average 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 = 5
 Average 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

1. What is the percentage increase in the production of company Y from 2002 to 2003?

1. 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

1. What is the ratio of the average production of company X in the period 2002-2004 to the average production of company Y in the same period?

1. From the given bar diagram , we see
Total production of company X in the period 2002-2004 = 250 + 500 + 400 = 1150
Total production of company Y in the period 2002-2004 = 350 + 400 + 500 = 1250
Number of given years = 3

 Required 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 2002-2004 = 250 + 500 + 400 = 1150
Total production of company Y in the period 2002-2004 = 350 + 400 + 500 = 1250
Number of given years = 3

 Required ratio = 250 + 500 + 400 : 350 + 400 + 500 3 3

Required ratio = 1150 : 1250 = 23 : 25

1. What is the difference between the production of company Z in 2004 and company Y in 2000 (in thousand tonnes)?

1. 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

Correct 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.

1. The number of States for which the production of cotton in 2005- 2006 is less than or equal to the preceding year is

1. 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

Correct 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.