A person sold a watch at a profit of 6 1/2%. If he had sold it for ₹ 2,500 more, he would have gained 19%. Find the cost price of the watch.

A person bought an article and sold it at a profit of 20%. Had he bought it at 20% less, what would have been the profit percentage if the selling price had been the same?

A person sells a car for ₹20,000, making a profit of 25% on the cost price. What is the cost price of the car?

A person bought a book at 3/4th of its listed price and sold it at 50% more than its listed price. What is the percentage of gain in the transaction?

The marked price of a fan is 20% more than cost price. If shopkeeper allows 10% discount, his profit is

A man gains 20% by selling an article for a certain price. If he sells it at double the price, the percentage of profit will be