The difference between average demand and average production of the five companies taken together is-

Answer: Option B

Total production of the five companies
= 1500 + 1800 +1000 + 2700 + 2200
= 9200
Total demand of the five companies
= 3000 + 600 + 2500 + 1200 + 3300
= 10600
∴ Required difference
$$\begin{array}{rl}& =\frac{1}{5}\left(10600-9200\right)\\ & =\frac{1}{5}\times 1400\\ & =280\end{array}$$