Study the following bar graph and answer the question that follows.
In which year was the maximum percentage increase in diamond exports compared to the previous year?
Answer & explanation
Correct answer: option 4
Lets solve one by one for each option .
1. 2010
Export of diamond in 2009 = 8.5
Export of diamond in 2010 = 9.8
Percentage increase in export of diamond in 2010 comparative to previous year
= \(\frac{9.8 - 8.5 }{8.5 }\) × 100
= \(\frac{1.3 }{8.5 }\) × 100
= 15.29%
2. 2012
Export of diamond in 2011 = 10.9
Export of diamond in 2012 = 9.8
Percentage increase in export of diamond in 2010 comparative to previous year
= \(\frac{9.8 - 8.5 }{8.5 }\) × 100
= \(\frac{1.3 }{8.5 }\) × 100
= 1.76%
3. 2014
Export of diamond in 2013 = 11.5
Export of diamond in 2014 = 12.4
Percentage increase in export of diamond in 2010 comparative to previous year
= \(\frac{12.4 - 11.5 }{11.5 }\) × 100
= \(\frac{0.9 }{11.5 }\) × 100
= 7.82%
4. 2009
Export of diamond in 2008 = 7.2
Export of diamond in 2009 = 8.5
Percentage increase in export of diamond in 2010 comparative to previous year
= \(\frac{8.5 - 7.2 }{7.2 }\) × 100
= \(\frac{1.3 }{7.2 }\) × 100
= 18.05%
Maximum percentage increase in diamond exports compared to the previous year is in 2009.
Ans:- 2009