Four Companies, Alpha, Beta, Gamma and Delta, Are Burning Coal

Multiple Choice

Four companies, Alpha, Beta, Gamma and Delta, are burning coal to produce electricity. As a result, they also produce emissions. In the table below, the first row of shows the total pounds of emissions currently produced by each firm. The other rows of the table show the cost for each firm of reducing emissions by the first 50 tons, the second 50 tons, and so on.

The total cost of requiring each firm to reduce its garbage by one third is

A) $167
B) $137
C) $187
D) $127