In the following multiple bar diagram, the data regarding cost of production and sales revenue of the company XYZ in the given years have been given. Study the bar diagram carefully and answer the questions.
In how many years the cost of production is more than the average cost of production of the given years ?
Total production cost in the given years
= 625 + 500 + 450 + 400 + 500 + 525 = Rs. 3000 thousand
=> Average revenue = $$\frac{3000}{6}$$ = Rs. 500 thousand
=> Required years = 2004 & 2009
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