Study the following bar diagram carefully and answer the four questions.Production of buses of company A and company B over the given years.
The average production (in thousand) of the company B over the years 2009, 2011, 2012 is
Production of buses by company B (in '000s) in :
2009 = 72
2011 = 90
2012 = 100
Total production = 72+90+100 = 262
=> Average production over these three years = 262/3 = 87.33
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