1) The difference between average demand and average production of the five companies taken together is A) 400 B) 280 C) 130 D) 620 Answer: Option BExplanation:Total production of the five companies = 1500 + 1800 + 1000 + 2200 + 2200 = 9200 Total demand of the five companies = 3000 + 600 + 2500 + 1200 + 3300 = 10600 Required difference = $\frac{1}{5}$(10600 - 9200) = 280