Study the following graph carefully and answer the questions given below it :
Account of income and expenditure (in crores) of seven companies in the year 2007
What is the approximate percentage of profit earned by all the Companies together in 2007 ?
Total income of all the companies in 2007 = 37.5 + 42.5 + 35 + 50 + 40 + 32.5 + 50 = 287.5
Total expenditure of all the companies in 2007 = 27.5 + 32.5 + 45 + 40 + 45 + 25 + 45 = 260
=> Profit % = $$\frac{Income - Expenditure}{Expenditure} * 100$$
= $$\frac{287.5 - 260}{260} * 100$$ = 10.5%
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