If the cost price of 15 pens is equal to the selling price of 10 pens, what is the gain percentage?
A
12%
B
30%
C
50%
D
60%
Correct Option:
C
Explanation
The cost price of 15 pens equals the selling price of 10 pens. If the cost price per pen is ₹1, the total cost price is ₹15, which is also the selling price of 10 pens. Therefore, the selling price per pen is ₹1.50, giving a profit of ₹0.50 on ₹1, or 50%.
