A traveling carnival visits 3 cities in 3 weeks. The accountant reports the carnival sold an average of 1,200 tickets. City A reported 1,100 tickets sold, City B reported 1,000 tickets sold, and City C reported 950 tickets sold. Find the percent error. Round the answer to the nearest whole number.
A. 18%
B. 16%
C. 154%
D. 15%
First, calculate the total number of tickets sold by the carnival: 1,100 tickets + 1,000 tickets + 950 tickets = <<1100+1000+950=3050>>3,050 tickets
Then calculate the average number of tickets sold per city: 3,050 tickets / 3 cities = <<3050/3=1016.6666666666666>>1,016.67 tickets
Then subtract the average from the reported average and divide by the average: (1200 - 1016.67) / 1016.67 * 100% = 18.02 %
Rounding to the nearest whole number gives 18%, so the answer is A.