Discussion :: Bar charts
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If the income of Company Q in 2001 was 10% more than its income in 2000 and the Company had earned a profit of 20% in 2000, then its expenditure in 2000 (in million US $) was?
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Answer : Option B
Explanation :
Let the income of Company Q in 2001 = x million US $.
Then, income of Company in 2001 = [ \(\frac { 110 } { 100 }\) X X ] million US $.
\(\frac { 110 X} { 100 }\) = 40 
X = [\(\frac { 400 } { 11 } \) ]
i.e., income of Company Q in 2000 [\(\frac { 400 } { 11 } \)] million US $.
Let the expenditure of Company Q in 2000 be E million US $.
Then, 20 = [\( \frac { [(400/11) -E] } { E} \) X 100 [
%Profit = 20% ]
20 = [ \([\frac {400} { 11E } ]\) -1 ] x 100
E = \(\frac { 400 } { 11 } \) x \( \frac { 100 } { 120 } \) = 30.30
Expenditure of Company Q in 2000 = 30.30 million US $
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