A drug dealer sells a tablet for 5 rupees. If he buys a tablet packet for Rs 50 and if a tablet packet contains 25 tablets, what will be his profit percentage?

The cost price of 60 articles is same as the selling price of x articles. If there is a profit of 20%, then what is the value of x?

While selling an article for Rs 18450, a person suffered a loss of 50%. At what price he should have sold the article (in Rs) to earn a profit of 50%?

If a vendor sells apples at Rs 170 per kg he suffers 15 % loss. If he sells at Rs 230 per kg, then what is his profit percentage? 

A trader sells two items at the rate of Rs 400 each. If he gains 15% on one and losses 15% on other, then what is the value (in Rs) of loss?

A person bought pens at 25 for a rupee and sold at 15 for a rupee. What is his profit percentage? 

Vinayak bought an item and sold it at a loss of 5%. If he had bought it for 10% less and sold it for Rs.390 more, he would have had a profit of 20%, find the cost price of item.

A car worth Rs 30,000 was sold by A to B at 10 % profit. B sold the car back to A at 5 % loss. In the entire transaction.