Instructions
Study the graph carefully to answer the questions that follow:
Per cent profit made by two companies over the years
Per cent profit=$$\frac{Income-Expenditure}{Expenditure}\times 100$$
Question 129
If in the year 2008 the incomes of both the companies A and B were the same what was the ratio of the expenditure of Company B in that year ?
Solution
Percentage profits of both the companies A and B in 2008 = 50% and 30%
Let the incomes be x
(x-Expenditure of A)/Expenditure of A = 0.5
Expenditure of A = x/1.5
(x - Expenditure of B)/Expenditure of B = 0.3
Expenditure of B = x/1.3
Ratio = x/1.5:x/1.3 = 13:15
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