Introduction to Data Interpretation
Direction: Study the following Bar graph and answer the questions. The Bar Graph gives the annual rates of inflation in percentages for 1975 and 1987.
- From 1975 to 1987, inflation rate increased in the third world countries approximately by
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On the basis of given graph in question ,
Inflation rate of the third world in 1987 = 36.2
Inflation rate of the third world in 1975 = 26.6
Increase in rate = 36.2 - 26.6 = 9.6Required percentage increase = 
Increase in rate × 100 
Inflation rate of the third world in 1975
Correct Option: D
On the basis of given graph in question ,
Inflation rate of the third world in 1987 = 36.2
Inflation rate of the third world in 1975 = 26.6
Increase in rate = 36.2 - 26.6 = 9.6Required percentage increase = Increase in rate × 100 Inflation rate of the third world in 1975 Required percentage increase = 9.6 × 100 ≈ 36% 26.6
Direction: Study the bar diagram and answer the following questions.
- The ratio of the average of the marks obtained in Biology for two terms to the average of the marks obtained in English and Mathematics for first term only is
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According to given bar graph , we have
Total marks obtained in Biology for two terms = 85 + 60 = 145
Total marks obtained in English and Mathematics for first term = 70 + 100 = 170
Required ratio = average of the marks obtained in Biology for two terms : average of the marks obtained in English and Mathematics for first termCorrect Option: C
According to given bar graph , we have
Total marks obtained in Biology for two terms = 85 + 60 = 145
Total marks obtained in English and Mathematics for first term = 70 + 100 = 170
Required ratio = average of the marks obtained in Biology for two terms : average of the marks obtained in English and Mathematics for first termRequired ratio = 85 + 60 = 70 + 100 = 145 : 170 = 29 : 34 2 2
- What is the percentage of marks obtained in Chemistry for both the terms?
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From the given bar diagram , we see
Total marks obtained in Chemistry for both the terms = 70 + 65 = 135Required percent = Total marks obtained in Chemistry for both the terms × 100 200
Correct Option: D
From the given bar diagram , we see
Total marks obtained in Chemistry for both the terms = 70 + 65 = 135Required percent = Total marks obtained in Chemistry for both the terms × 100 200 Required percent = 135 = 67.5 2
- Difference of marks obtained in both the terms by the students is maximum in
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According to given bar graph , we have
Difference between the marks in Biology = 85 – 60 = 25
Difference between the marks in Maths = 100 – 80 = 20
Difference between the marks in Physics = 90 – 75 = 15Correct Option: C
According to given bar graph , we have
Difference between the marks in Biology = 85 – 60 = 25
Difference between the marks in Maths = 100 – 80 = 20
Difference between the marks in Physics = 90 – 75 = 15
Hence , required answer is Biology .
- Average marks obtained in Physics for two terms is
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On the basis of given graph in question ,
Total marks obtained in Physics for two terms = 90 + 75 = 165
Number of terms = 2Required average = Total marks obtained in Physics for two terms Number of terms
Correct Option: B
On the basis of given graph in question ,
Total marks obtained in Physics for two terms = 90 + 75 = 165
Number of terms = 2Required average = Total marks obtained in Physics for two terms Number of terms Required average = 165 = 82.5 2
