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Bar Charts

The following bar graph shows the Income and Expenditures (in million US $) of five companies in the year 2001. The percent profit or loss of a company is given by

% Profit/Loss = Income - Expenditure x 100
Expenditure

Income and Expenditure (in million US $) of five companies in the year 2001.

Q1: For Company R, if the expenditure had increased by 20% in year 2001 from year 2000 and the company had earned profit of 10% in 2000, what was the Company's income in 2000 (in million US $)?

A 35.75

B 37.25

C 38.5

D 41.25

ANS:D - 41.25

Let the expenditure of Company R in 2000 be x million US $.

Then, expenditure of Company R in 2001 = ( 120 x x ) million US $.
100
Therefore 120x = 45     =>     x = 37.5.
100
i.e., expenditure of Company R in 2000 = 37.5 million US $. Let the income of Company R in 2000 be I million US $.
Then, 10 = (I - 37.5) x 100     [ Ref %Profit in 2000 = 10%]
37.5
    => I - 37.5 = 3.75     => I = 41.25 i.e., Income of Company R in 2000 = 41.25 million US $.



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