Question

In which of the following is the percentage increase in demand of cement the highest over the previous year?

• A. 2006
• B. 2008
• C. 2009
• D. 2010
• E. None of these

Answer 1

The correct option is A 2006

Percentage increase:
Year 2006 $=\frac{49.2-46.1}{46.1}\times 100=6.7\%$
Year 2008 $=\frac{51.6-50.7}{50.7}\times 100=1.77\%$
Year 2009 $=\frac{54.7-51.6}{50.6}\times 100=6\%$
Year 2010 $=\frac{57.8\times 54.7}{54.7}\times 100=5.76\%$
Hence, highest percentage increase is for year 2006.