2009-II-54

Ans: A
A is true. The percentage increase of the annual revenue of company $X$

$\begin{array}{cl}=& {\displaystyle \frac{60–30}{30}}\times 100\mathrm{\%}\\ =& 100\mathrm{\%}\end{array}$

The percentage increase of the annual revenue of company $Y$

$\begin{array}{cl}=& {\displaystyle \frac{6–3}{3}}\times 100\mathrm{\%}\\ =& 100\mathrm{\%}\end{array}$

B is false. According to the argument in A, the two percentage increases are the same.

C is false. According to the argument in A, the two percentage increases are the same.

D is false. According to the argument in A, the two percentage increases are the same.