Question

If the selling price of a flower vase is of its cost price, find the loss per cent.

Answer 1

Let CP be Rs $x$.
Then, SP = Rs $\frac{4x}{5}$
Since CP>SP, there is a loss.

$$\begin{gathered} \mathrm{Loss}=\mathrm{CP}-\mathrm{SP} \\ =x-\frac{4x}{5}=\mathrm{Rs}\frac{x}{5} \\ \therefore \mathrm{Loss}\mathrm{percentage}=\left(\frac{\mathrm{loss}}{\mathrm{CP}}\times 100\right)\% \\ =\left(\frac{{\displaystyle \frac{x}{5}}}{x}\times 100\right)\% \\ =20\% \end{gathered}$$

Thus, there is a loss of 20%.