Study the following graph and answer questions
Profit earned by seven companies during 2003 and 2004
Profit =income-expenditure
Total profit by all companies in 2003(in crores)
= 20 + 40 + 50 + 70 + 50 + 80 + 60
= 370
=> Required average = $$\frac{370}{7} = 52.86$$
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