The ratio of the cost price and selling price is 5 : 4, the loss percent is = ?

A. 20%

B. 25%

C. 40%

D. 50%

Answer: Option A

Solution(By Examveda Team)

According to question,
$$\eqalign{ & \frac{{{\text{Cost price}}}}{{{\text{Selling price}}}} = \left. {\frac{5}{4}} \right\}{\text{1 unit loss}} \cr & {\text{loss}}\% = \frac{1}{5} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\, = 20\% {\text{ loss}} \cr} $$