If the cost price of 25 pens is equal to the selling price of 20 pens, then profit percent is = ?

A. 20%

B. 25%

C. 15%

D. 5%

Answer: Option B

Solution(By Examveda Team)

CP of 25 pens = SP 20 pens
$$\frac{{{\text{CP}}}}{{{\text{SP}}}} = \frac{{20}}{{25}} = \left. {\frac{4}{5}} \right)1 = {\text{Profit}}$$
$$\eqalign{ & {\text{Profit }}\% = \frac{1}{4} \times 100 \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 25\% \cr} $$