Introduction to Data Interpretation
Direction: Given here is a pie chart showing the cost of gold in 2010, 2011, 2012 and 2013. Study the chart and answer the following questions.
 The ratio of percentage increases in price of gold from 2011 to 2012 and 2012 to 2013 is

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As per the given pie chart in question ,
The corresponding angle of year 2012 = 105°
The corresponding angle of year 2011 = 75°
Total Increase = 105°  75° = 30°Percentage increase = Total Increase × 100 The corresponding angle of year 2011 Percentage increase in 2012 in comparison to 2011 = 3000 = 40 75
The corresponding angle of year 2013 = 135°
The corresponding angle of year 2012 = 105°
Total Increase = 135°  105° = 30°Percentage increase = Total Increase × 100 The corresponding angle of year 2012
Correct Option: B
As per the given pie chart in question ,
The corresponding angle of year 2012 = 105°
The corresponding angle of year 2011 = 75°
Total Increase = 105°  75° = 30°Percentage increase = Total Increase × 100 The corresponding angle of year 2011 Percentage increase in 2012 in comparison to 2011 = 3000 = 40 75
The corresponding angle of year 2013 = 135°
The corresponding angle of year 2012 = 105°
Total Increase = 135°  105° = 30°Percentage increase = Total Increase × 100 The corresponding angle of year 2012 Percentage increase in 2013 in comparison to 2012 = 3000 = 200 105 7
Required ratio = Percentage increase in 2012 in comparison to 2011 : Percentage increase in 2013 in comparison to 2012∴ Required ratio = 40 : 200 = 7 : 5 7
Direction: Study the pie chart given below and answer the following questions.
 What should be the central angle of the sector ‘cost of paper’?

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According to given pie chart in question ,
Percent of cost of paper = 10%
∵ 100% ≡ 360°∴ 1% = 360° 100
Correct Option: C
According to given pie chart in question ,
Percent of cost of paper = 10%
∵ 100% ≡ 360°∴ 1% = 360° 100 We have , 10% ≡ 360 × 10 = 36° 100
 The ratio between royalty and binders’ charges is

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As per the given pie chart in question ,
Percentage of royalty = 15%
Percentage of binders = 18%
Required ratio = Percentage of royalty : Percentage of bindersCorrect Option: A
As per the given pie chart in question ,
Percentage of royalty = 15%
Percentage of binders = 18%
Required ratio = Percentage of royalty : Percentage of binders
Required ratio = 15 : 18 = 5 : 6
Direction: Study the following pie chart carefully and answer the questions. The pie chart represents the percentage of people involved in various occupations.
 How many more people are involved in service than in trade?

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On the basis of given pie chart in question ,
Total number of people = 20000
Percentage of people involved in trade = 6.7%
Percentage of people involved in service = 20%
Difference of percentage = (20 – 6.7)% = 13.3%
∴ Required answer = 13.3% of 20000Correct Option: B
On the basis of given pie chart in question ,
Total number of people = 20000
Percentage of people involved in trade = 6.7%
Percentage of people involved in service = 20%
Difference of percentage = (20 – 6.7)% = 13.3%
∴ Required answer = 13.3% of 20000Required answer = 20000 × 13.3 = 2660 100
 The ratio of the people involved in service to that in industry is

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As per the given pie chart in question ,
Percentage of people involved in industry = 30%
Percentage of people involved in service = 20% Required ratio = Percentage of people involved in service : Percentage of people involved in industryCorrect Option: B
As per the given pie chart in question ,
Percentage of people involved in industry = 30%
Percentage of people involved in service = 20% Required ratio = Percentage of people involved in service : Percentage of people involved in industry
Required ratio = 20 : 30 = 2 : 3