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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.

Question 97

What is the approximate proportion of coal in the domestic consumption of energy in 2012?

Solution

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Consumption of energy in the given country for the year 2012 is as follows:

540(1.15)(1.1)(1.15) + 290(1.1)(1.1)(1.15) + 80(1.05)(1.1)(1.05) + 20(1.2)(1.15)(1.1) + 50(1.1)(1.05)(1.1) + 20(1.15)(1.15)(1.1)

= 786 + 404 + 97 + 30 + 64 + 29 =  1410 MTOE

Hence the required percentage is $$\dfrac{786}{1410}\times100\ \approx\ \ 56\%\ $$

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