Question : Profit after selling a commodity for Rs. 400 is the same as loss after selling it for Rs. 300. The cost of the commodity is:

Question : 12 copies of a book were sold for Rs. 1700, thereby gaining the cost price of 3 copies. The cost price of a copy of the book is:

Question : If the selling price of 9 boxes is equal to the cost price of 15 boxes. The gain percentage is (The selling price of all boxes is the same and the cost price of all boxes is the same):

Question : Akshay has 30 articles, each having the same cost price. He marked the price of each article at 30% above its cost price. He sold 15 of the articles at a discount of 20% each, and the remaining 15 articles at a discount of 10% each, thereby gaining a total profit of Rs. 630.

Question : The selling price of 15 oranges is the same as the cost price of 19 oranges. What is the approximate profit percentage?