Price per share of Stock X=x
Earnings per share of Stock X=y
Ratio of price per share to earnings per share of Stock X=x/y
Last year:
Price per share of stock X= x(1+k/100)
Earnings per share of Stock X= y(1+m/100)
Ratio of price per share of price per share to earnings per share of Stock X= x/y*(1+k/100)/(1+m/100)
Ratio simplified: x/y*(100+k/100)/(100+m/100)
100's cancel
x/y*(100+k/100+m)
Percent increase formula:
(higher - lower)/lower*100 %
y/x*[(100+k)/(100+m)*x/y-x/y]*100=(100+k)/(100+m)-1*100 %
100+k-100-m/100+m*100 %
(k-m)*100/100+m %
Stock X
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Source: Beat The GMAT — Problem Solving |
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truplayer256
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This was a good problem.
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