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 136

Expenditure of Companies B and C in 1995 were equal. Then which of the following statements is ‘’definitely true’’ about the incomes of two companies in 1995 ?

Solution

Let IB be B's income and IC be C's income.

If E is their expenditure,then using the formula % P = 100 * (I-E)/E

For B we get

.50 = (IB - E)/E

So, IB = 1.5 E

Similarly, IC = 1.6E

So, IC - IB = E/10

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