A fruit seller makes a profit of 20% on a box of apples. If the cost price of the box is ₹240, find its selling price.
If the cost price of 8 apples is ₹34 and the selling price of 12 apples is ₹57. How many apples should a person sell to make a profit of ₹45?
The cost price of 20 articles is same as the selling price of 16 articles. Find the gain percent.