Study the following graph carefully and answer the questions given below it.
Percentage Profit/Loss = $$\frac{Income - Expenditure}{Expenditure}\times100$$
If the income of company B in 1997 and 1998 were in the ratio of 2 : 3, what was the ratio of the expenditure of the company in these two years ?
Percentage profit = 100* (Income - Expenditure)/Expenditure
So, Income = E * (%P+1)
E = Income / (%P +1)
Thus, the required ratio is 2 * (100/150) : 3 * (100/145) = 29 : 45
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