Question

What is the total number of units in millions of electricity produced each year based on the current extraction rates of coal from all mines combined assuming all mines have an endless supply of coal

Answer 1

Answer:

The table presents us with a great load of data. However, reading the question carefully, we can see that the only data we need for solving the question is the amount of electricity that could be produced per kg of coal in each mine (the 2nd column from the right) and the remaining coal left in each mine (the right-most column).

Hence, for each mine separately, we need to multiply the numbers in the “electricity production per kg (units)” column by the numbers in the “remaining coal (millions of tonnes)” column:

Folen: 17×68.27 = 1,160.59

Dirme: 12.3×70.95 = 872.685

Ilt: 14.2×62.73 = 890.766

Ryken: 21×61.02 = 1,281.42

All Others: 14.7×82.63 = 1,214.661