Bar graph problems
- 1. What was the approximate average number of students enrolled in District A over all the years together?
Options- A. 5999
- B. 5666
- C. 5444
- D. 5333 Discuss
Correct Answer: 5666
Explanation:
- 2. Total number of students enrolled in District A and District B together in the year 2010 was what percentage of the total number of students enrolled in District A in the year 2008?
Options- A. 150
- B. 120
- C. 250
- D. 220 Discuss
Correct Answer: 150
Explanation:
- 3. What was the percentage increase in enrollment in the number of students in District C in year 2007 as compared to that in the previous year?
Options- A. 115.5
- B. 112.5
- C. 15.5
- D. 12.5 Discuss
Correct Answer: 12.5
Explanation:
- 4. In which year was the number of students enrolled in all the three districts together the second highest?
Options- A. 2006
- B. 2007
- C. 2008
- D. 2009 Discuss
Correct Answer: 2008
Explanation:
From given graph , we can see that
Since , In 2008 year is the number of students enrolled in all the given 3 districts together the second highest.
Hence required Answer will be 2008 year .
- 5. What was the difference between the number of students enrolled in all the 3 districts together in the year 2008 and the number of students enrolled in District B over all the years together?
Options- A. 12000
- B. 11000
- C. 1100
- D. 1400 Discuss
Correct Answer: 12000
Explanation:
Students enrolled in 2008 in all three districts ( A + B + C ) = 8000 + 6000 + 7000 = 21000
Students enrolled in district B over all the years ( 2005 to 2010 ) = 5000 + 4000 + 7000 + 6000 + 4000 + 7000 = 33000
? Required Difference = Students in district B over all the years ( 2005 to 2010 ) ? Students in 2008 in all 3 districts
? Required Difference = 33000 ? 21000 = 12000
- 6. During which year the percentage rise/fall in imports from the previous year is the lowest?
Options- A. 2003
- B. 2004
- C. 2006
- D. 2007 Discuss
Correct Answer: 2007
Explanation:
As per given graph, we calculate the difference in two consecutive years import.
In 2003, change in imports = (35 - 30)/35 x 100 = 100/7 = 139/7% fall
In In 2004, change in imports = (40 - 30)/ 50 x 100 = 1/3 x 100 = 331/3% rise
In 2006, change in imports = (55 - 50)/50 x 100 = 10% rise
In 2007, change in imports = (60 - 55/55) x 100 = 91/11% rise
Hence, in 2007 the percentage rise/fall in imports from the previous year is the lowest.
- 7. In which of the following pair of year and the percent increase in the export over the previous year is correctly matched?
Options- A. 2002-03
- B. 2004-5
- C. 2005-06
- D. 2007-08 Discuss
Correct Answer: 2007-08
Explanation:
In 2002-03, Total import = 35 + 30 = Rs. 65 crores
Total export = 40 + 55 = Rs. 95 crores
In 2004-05 . Total import = 40 + 50 = Rs. 90 crores
Total export = 35 + 40 = Rs. 75 crores
In 2005-06, Total import = 40 + 50 = Rs. 90 crores
Total export = 40 + 60 = Rs. 100 crores
In 2007-08, Total import = 60 + 45 = Rs. 105 crores
Total export = 50 + 55 = Rs. 105 crores
Hence, in 2007-08 pair of years the total import is equal to total export.
- 8. Which of the following pair of year and the percent increase in the export over the previous year is correctly matched?
Options- A. 2003-11.11
- B. 2004-33.33
- C. 2005-14.29
- D. 2008-20 Discuss
Correct Answer: 2005-14.29
Explanation:
Percentage increase in export = (previous year export - current year export) x 100/current year export.
In 2003.
Percentage increase in export = (45 - 40) x 100 /40 = 12.5%
In 2004. there is decrease in export over the previous year.
In 2005.
Percentage increase in export = (40 - 35) x 100/35 = 14.29%
In 2008.
Percentage increase in export = (55 - 50) x 100/ 50 = 10%
The answer will be year 2005 and 14.2. The correct option is (c).
- 9. What is the ratio of total imports to the total exports for all the given years together?
Options- A. 31 : 25
- B. 35 : 31
- C. 63 : 65
- D. 65 : 63 Discuss
Correct Answer: 63 : 65
Explanation:
Total import = 35 + 30 + 40 + 50 + 55 + 60 + 45 = Rs. 315 crores
Total export = 40 + 55 + 35 + 40 + 60 + 50 + 55 = Rs. 335 crores
Since, their ratio = 315 : 335 = 63 : 65
- 10. The total export in the years 2004, 2005 and 2008 together are what percent of the total imports during the same period?
Options- A. 99.33
- B. 93.67
- C. 96.3%
- D. 107.41 Discuss
Correct Answer: 96.3%
Explanation:
In 2004, 2005 and 2008, total import = 40 + 50 + 45 = Rs. 135 crores
In 2004, 2005 and 2008, total export = 35 + 40 + 55 = Rs. 130 crores
Required percentage = 130/135 x 100 = 96.3%
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