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Instructions
Charts given below describe the energy scenario of a country. Assume that the country does not export any form of energy and whatever is produced and imported is consumed in the same year. Go through the Charts and answer the questions.
Solution
The natural gas consumption in 2009 =Â $$\dfrac{8}{100}\left(1000\right)\ =\ 80$$
The natural gas consumption in 2010 = 5% increase from 2009 = 80(1.05)
Import of natural gas for the year 2010 = 50% of 80(1.05) = 42
The natural gas consumption in 2012 = 80(1.05)(1.1)(1.05)
Import of natural gas for 2012 = 30% of 80(1.05)(1.1)(1.05) = 29 (approx)
Hence the required difference = 42 - 29 = 13
So, from 2010 to 2012, the imports were reduced by 13 MTOE.
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