Introduction to Data Interpretation
Direction: Study the following bar graph carefully and answer the questions.
 The ratio of the total enrollments in the year 1980 and 2000 at the State University and Central University is

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On the basis of given graph in question ,
Total enrollments in the year 1980 and 2000 at the State University = 8000 + 12000 = 20000
Total enrollments in the year 1980 and 2000 at the Central University = 10000 + 14000 = 24000Correct Option: D
On the basis of given graph in question ,
Total enrollments in the year 1980 and 2000 at the State University = 8000 + 12000 = 20000
Total enrollments in the year 1980 and 2000 at the Central University = 10000 + 14000 = 24000
Required ratio = 20000 : 24000
Hence , Required ratio = 20 : 24 = 5 : 6
 Total enrollments in both State University and Central University during the year 1980, 1990 and 2000 is

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According to given bar diagram , we see
Number of students were enrolled at State and Central University in 1980 = 8000 + 10000 = 18000
Number of students were enrolled at State and Central University in 1990 = 14000 + 12000 = 26000
Number of students were enrolled at State and Central University in 2000 = 12000 + 14000 = 26000Correct Option: C
According to given bar diagram , we see
Number of students were enrolled at State and Central University in 1980 = 8000 + 10000 = 18000
Number of students were enrolled at State and Central University in 1990 = 14000 + 12000 = 26000
Number of students were enrolled at State and Central University in 2000 = 12000 + 14000 = 26000
Required total enrollment = (18000 + 26000 + 26000) = 70000
 In 1990, how many more students were enrolled at State University than at Central University?

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From the given bar diagram , we see
Number of students were enrolled at State University in 1990 = 14000
Number of students were enrolled at Central University in 1990 = 12000
Required answer = Number of students were enrolled at State University in 1990  Number of students were enrolled at Central University in 1990Correct Option: C
From the given bar diagram , we see
Number of students were enrolled at State University in 1990 = 14000
Number of students were enrolled at Central University in 1990 = 12000
Required answer = Number of students were enrolled at State University in 1990  Number of students were enrolled at Central University in 1990
Required answer = 14000 – 12000 = 2000
Direction: The Bar graphs represents the number of road accidents due to bus and car during the years 2008 2013. Study the graph and answer the questions.
 The ratio of the averages of the road accidents due to buses to that by cars in the year 2008, 2011 and 2013 is

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As per the given bar graph , we have
Total number of the road accidents by buses in the year 2008, 2011 and 2013 = 30 + 60 + 10 = 100
Total number of the road accidents by cars in the year 2008, 2011 and 2013 = 40 + 20+ 20 = 80
Number of given years = 3Required ratio = Total number of the road accidents by buses : Total number of the road accidents by cars 3 3
Required ratio = 100 : 80 = 5 : 4Correct Option: B
As per the given bar graph , we have
Total number of the road accidents by buses in the year 2008, 2011 and 2013 = 30 + 60 + 10 = 100
Total number of the road accidents by cars in the year 2008, 2011 and 2013 = 40 + 20+ 20 = 80
Number of given years = 3Required ratio = Total number of the road accidents by buses : Total number of the road accidents by cars 3 3
Required ratio = 100 : 80 = 5 : 4
 The respective ratio between the accidents by cars in the year 2012, 2010 and 2008 is

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On the basis of given graph in question ,
Number of accidents by cars in the year 2012 = 40 thousands
Number of accidents by cars in the year 2010 = 50 thousands
and Number of accidents by cars in the year 2008 = 40 thousands
Required ratio = Number of accidents by cars in the year 2012 : Number of accidents by cars in the year 2010 : Number of accidents by cars in the year 2008Correct Option: B
On the basis of given graph in question ,
Number of accidents by cars in the year 2012 = 40 thousands
Number of accidents by cars in the year 2010 = 50 thousands
and Number of accidents by cars in the year 2008 = 40 thousands
Required ratio = Number of accidents by cars in the year 2012 : Number of accidents by cars in the year 2010 : Number of accidents by cars in the year 2008
Required ratio = 40 : 50 : 40 = 4 : 5 : 4