Instructions

Study the following graph carefully and answer the questions given below it.

Percent profit earned by three companies
A, B and C over the years 1994 to 2000
(Profit = Income - Expenditure)

Question 131

Expenditure of the three Companies in the year 2000 were equal. What was the ratio of incomes of companies. A, B and C respectively in that year ?

Solution

Let the expenditure be E

Let incomes for A,B and C be IA, IB and IC respectively.

Using the formula, %p= 100*(I-E)/E

For A, 75 = 100 (IA-E)/E

So, IA = 1.75 E

Similarly, IB = 1.85 E

and IC = 1.7E

So, the required ratio = 1.75:1.85:1.7 = 35:37:34

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