Question

In 1970 Professor Fellswoop earned $12,000; in 1980 he earned $24,000; and in 1990 he earned $36,000. If the CPI was 40 in 1970, 60 in 1980, and 100 in 1990, then in real terms, Professor Fellswoop's salary was highest in____________.

Answer 1

In 1980

Step-by-step explanation:

Year Salary Percentage Salary Increase CPI Increase

1970 $12,000 - -

1980 $24,000 100 50

1990 $36,000 50 83.3

As can be seen in the table, the Professor's salary increase from 1970 to 1980 was twice as much as the CPI increase during the same period.

On the contrary, his salary increase from 1980 to 1990 was significantly less than the CPI increase during the same period.

Therefore, the professor's salary was highest in 1980.