Answer is A
Given statements
$\frac{100+P}{100} *CP=1920 ----(1)$ $\frac{100-L}{100} *CP=1280 ----(2)$
$\frac{(1)}{(2)}$ ==> $\frac{100+P}{100-L} = \frac{1920}{1280}$
Since, % profit earned and % loss incurred are same[equate to x], $\frac{100+x}{100-x}=\frac{1920}{1280}$
On solving above equation, we will get P = L = 20%
Putting value of P in equation (1), we will get CP = Rs.1600
In order to make 25% profit, article should be sold at $\frac{1600*125}{100}=Rs.2000$