The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25%, then the… · ABC26GN2654

Let C.P. of each article be ₹ 1. C.P. of $x$ articles $=₹ x ;$ S.P. of $x$ articles $=₹ 20$. Profit $=₹(20-x)$. $$\begin{aligned} & \therefore \frac{20-x}{x} \times 100=25 \Rightarrow 2000-100 x=25 x \\ & \Rightarrow 125 x=2000 \Rightarrow x=16 . \end{aligned}$$