Study the given bar graph carefully and answer the following question.
What is the difference between the average demand and the average production of the three companies taken together?

Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 1,456.
Total demand = 3800 + 4532 + 5318 = 13650
Average demand = 13650 / 3 = 4550
Total production = 3620 + 2829 + 2833 = 9282
Average production = 9282 / 3 = 3094
Difference = 4550 - 3094 = 1456
Therefore, the difference between the average demand and production of the three companies is 1456.