Introduction to Data Interpretation
Direction: Study the bar diagram and answer the questions.
- The average number of boys from all the departments together is
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From the given bar diagram , we see
Total number of boys from all the departments = 60 + 200 + 100 + 160 + 120 = 660
Number of departments = 5Average number of boys = 660 5
Correct Option: B
From the given bar diagram , we see
Total number of boys from all the departments = 60 + 200 + 100 + 160 + 120 = 660
Number of departments = 5Average number of boys = 660 = 132 5
- The difference between the total number of boys and the total number of girls from all the Departments together is
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As per the given bar graph , we have
Total number of boys = 60 + 220 + 100 + 160 + 120 = 660
Total number of girls = 1100
Required difference = Total number of girls - Total number of boysCorrect Option: D
As per the given bar graph , we have
Total number of boys = 60 + 220 + 100 + 160 + 120 = 660
Total number of girls = 1100
Required difference = Total number of girls - Total number of boys
Required difference = 1100 – 660 = 440
- The percentage of the girls from Biology Department compared to the total number of girls from all the other Departments together is
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As per the given bar graph , we have
Girls in Biology = 300
Girls in all other departments = 140 + 180 + 260 + 220 = 800∴ Required percentage = 300 × 100 800
Correct Option: A
As per the given bar graph , we have
Girls in Biology = 300
Girls in all other departments = 140 + 180 + 260 + 220 = 800∴ Required percentage = 300 × 100 800 Required percentage = 75 = 37 1 % 2 2
Direction: Sales of Books (in thousand numbers) from Six Branches – B1, B2, B3, B4, B5 and B6 of a publishing Company in 2000 and 2001. Study the graph and answer the questions.
- Find the percentage increase in the sales of books of branch B3 in the year 2001 than the branch B2.
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From the given bar diagram , we see
The sales of books of branch B3 in the year 2001 = 110 thousands
The sales of books of branch B2 in the year 2001 = 65 thousandsRequired percentage = (110 - 65) × 100 65
Correct Option: A
From the given bar diagram , we see
The sales of books of branch B3 in the year 2001 = 110 thousands
The sales of books of branch B2 in the year 2001 = 65 thousandsRequired percentage = (110 - 65) × 100 65 Required percentage = 45 × 100 = 69.2% 65
- The average sale of branches B1, B3 and B6 in 2000 is what percent of the average sale of branches B1, B2 and B3 in 2000?
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As per the given bar graph , we have
Total sale of branches B1, B2 and B3 in 2001 = 105 +65 + 110 = 280 thousands
Number of given branches = 3Average sale of branches B1, B2 and B3 in 2001 = 105 +65 + 110 3 Average sale of branches B1, B2 and B3 in 2001 = 280 thousand 3
Total sale of branches B1, B3 and B6 in 2000 = 80 + 95 + 70 = 245 thousands
Number of given branches = 3Average sale of branches B1, B3 and B6 in 2000 = 
80 + 95 + 70 
Thousand 3 Average sale of branches B1, B3 and B6 in 2000 = 245 Thousand 3
Correct Option: A
As per the given bar graph , we have
Total sale of branches B1, B2 and B3 in 2001 = 105 +65 + 110 = 280 thousands
Number of given branches = 3Average sale of branches B1, B2 and B3 in 2001 = 105 +65 + 110 3 Average sale of branches B1, B2 and B3 in 2001 = 280 thousand 3
Total sale of branches B1, B3 and B6 in 2000 = 80 + 95 + 70 = 245 thousands
Number of given branches = 3Average sale of branches B1, B3 and B6 in 2000 = 80 + 95 + 70 Thousand 3 Average sale of branches B1, B3 and B6 in 2000 = 245 Thousand 3 ∴ Required percentage = 81.66 × 100 93.33 Required percentage = 24500 = 87.5% 280
