Question : Directions: Study the following graph and answer the questions. The number on the top of a bar is the number of TV. Demand and production of colour TV of five companies A, B, C, D, and E.
What is the difference between the average demand and the average production of five companies taken together?
Option 1: 1400
Option 2: 400
Option 3: 280
Option 4: 138
Correct Answer: 280
Solution :
As per the given graph,
The average demand of five companies = $\frac{3300+1200+3000+600+2500}{5}$
The average demand of five companies = $\frac{10600}{5}$ = 2120
The average production of five companies = $\frac{2200+2700+1500+1800+1000}{5}$
The average production of five companies = $\frac{9200}{5}$ = 1840
The difference between the average demand and the average production of five companies
= 2120 – 1840 = 280
Hence, the correct answer is 280.
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