So far this year, the average monthly revenue at the Somerville Times is $72,165. That is 25% less than the monthly average was last year. What was the average last year?

The average last year was $96,220.

Step-by-step explanation:

From the information provided, you know that the average monthly revenue at the Somerville Times represents 75% of last year's monthly average and you can use a rule of three to find the value that represents 100%:

72,165  →  75%

    x      ←  100%

x=(72,165*100)/75

x=96,220

According to this, the answer is that the average last year was $96,220.