Question:
If the selling price of a flower vase is $\frac{5}{6}$ of its cost price, find the loss per cent.
Solution:
Let the $\mathrm{CP}$ of the flower vase set be ₹ $x$.
SP of the flower vase $=\frac{5}{6} \mathrm{CP}=₹ \frac{5}{6} x$
Loss $=\mathrm{CP}-\mathrm{SP}=x-\frac{5}{6} x=₹ \frac{x}{6}$
Loss $\%=\frac{\text { Loss }}{\text { CP }} \times 100 \%=\frac{\frac{x}{6}}{x} \times 100 \%=\frac{100}{6} \%=\frac{50}{3} \%=16 \frac{2}{3} \%$