In which year was the percentage increase in production as compared to the previous year, the maximum? · ABC26GN5663
Subject: General Aptitude · Chapter: Bar Graphs
Study the following bargraph and answer the questions given below:
Production of Fertilizers by a Company (in 10000 tonnes) Over the Years| Years | Production |
|---|
| 2005 | 25 |
| 2006 | 40 |
| 2007 | 60 |
| 2008 | 45 |
| 2009 | 65 |
| 2010 | 50 |
| 2011 | 75 |
| 2012 | 80 |
Chart drawn from the data printed in the source figure.
In which year was the percentage increase in production as compared to the previous year, the maximum?(a)2012
(b)2011
(c)2009
(d)2007
(e)2006
Answer
Explanation
Percentage increase in a year compared to previous year: $$\begin{aligned} 2006 & \rightarrow\left\{\frac{(40-25)}{25} \times 100\right\} \%=\left(\frac{15}{25} \times 100\right) \%=60 \% ; \\ 2007 \rightarrow & \left\{\frac{(60-40)}{40} \times 100\right\} \% \\ & =\left(\frac{20}{40} \times 100\right) \%=50 \% ; \end{aligned}$$ In 2008, there is decrease in production. $$\begin{aligned} 2009 \rightarrow & \left\{\frac{(65-45)}{45} \times 100\right\} \% \\ = & \left(\frac{20}{45} \times 100\right) \%=\frac{400}{9} \%=44.44 \% ; \end{aligned}$$ In 2010, there is a decrease in production. $$\begin{aligned} 2011 \rightarrow & \left\{\frac{(75-50)}{50} \times 100\right\} \%=\left(\frac{25}{50} \times 100\right) \%=50 \% ; \\ 2012 \rightarrow & \left\{\frac{(80-75)}{75} \times 100\right\} \% \\ = & \left(\frac{5}{75} \times 100\right) \%=\frac{20}{3} \%=6.67 \% \end{aligned}$$ Clearly, maximum percentage increase is in the year 2006.
Explanation as extracted from the printed page; notation may be imperfect.
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