Introduction to Data Interpretation
Direction: A constituency is divided in four regions A, B, C and D. Two candidates X and Y contested the last election from that constituency. The adjoining graph gives the break–up of voting in the four regions. Study the graph and answer the following questions.
 In region B, Y gets A% more votes than X. Find the value of A.

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As per the given bar graph , we have
n region B, Y gets votes = 88
X gets votes = 73Required percent = 88  73 × 100 73
Correct Option: B
As per the given bar graph , we have
n region B, Y gets votes = 88
X gets votes = 73Required percent = 88  73 × 100 73 Required percent = 1500 ≈ 21% 73
Hence , required answer is 21% .
 Approximately how much percent of voters did not caste their votes?

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On the basis of given graph in question ,
Number of voters who did not vote = 1 + 9 + 5 + 8 = 23
Total number of votes = (41 + 97 + 52 + 59) + 225 = 474Required percent = Number of voters who did not vote × 100 Total number of votes
Correct Option: A
On the basis of given graph in question ,
Number of voters who did not vote = 1 + 9 + 5 + 8 = 23
Total number of votes = (41 + 97 + 52 + 59) + 225 = 474Required percent = Number of voters who did not vote × 100 Total number of votes Required percent = 23 × 100 ≈ 4.9% 474
 Approximately how much percent of voters voted in favour of X?

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According to given bar graph , we have
Total votes received by X = 45 + 73 + 51 + 56 = 225
Total votes in four regions A, B, C and D = (41 + 97 + 52 + 59) + 225 = 474∴ Required percent = Total votes received by X × 100 Total votes in four regions A, B, C and D
Correct Option: B
According to given bar graph , we have
Total votes received by X = 45 + 73 + 51 + 56 = 225
Total votes in four regions A, B, C and D = (41 + 97 + 52 + 59) + 225 = 474∴ Required percent = Total votes received by X × 100 Total votes in four regions A, B, C and D Required percent = 225 × 100 ≈ 47.5% 474
Direction: The bar graph provided below gives the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years. Study the bar chart and answer the following questions.
 The difference between the production of company Z in 1998 and company Y in 1996 is :

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On the basis of given graph in question ,
Production of company Z in 1998 = 45 lakh tonnes
Production of company Y in 1996 = 25 lakh tonnes
Required difference = Production of company Z in 1998  Production of company Y in 1996Correct Option: D
On the basis of given graph in question ,
Production of company Z in 1998 = 45 lakh tonnes
Production of company Y in 1996 = 25 lakh tonnes
Required difference = Production of company Z in 1998  Production of company Y in 1996
Required difference = (45 – 25) lakh tonnes = 2000000 tonnes
 The percentage increase in the production of company Y from 1996 to 1999 is :

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According to given bar graph , we have
Production of company Y in 1996 = 25 lakh tonnes
Production of company Y in 1999 = 40 lakh tonnes
Increase in production = 40  25 = 15 lakh tonnesRequired percentage increase = Increase in production × 100 Production of company Y in 1996
Correct Option: A
According to given bar graph , we have
Production of company Y in 1996 = 25 lakh tonnes
Production of company Y in 1999 = 40 lakh tonnes
Increase in production = 40  25 = 15 lakh tonnesRequired percentage increase = Increase in production × 100 Production of company Y in 1996 Required percentage increase = 15 × 100 = 60 % 25