Table: Business permits issued by a municipal office — January 120, February 150, March 180, April 150. What was the average number of permits issued per month?
Correct answer: D. 150
Average = total ÷ number of months = 600 ÷ 4 = 150. Notice that February and April are exactly at the average. Comparing each month with the average shows which months were busier than usual.
easy