Profit and Loss Questions for Competitive Exams

A man buys a table and a chair for 500. He sells the table at a loss of 10 % and the chair at a gain of 10 %. He still gain ₹10 on the whole. The cost price of chair in rupees is 

Profit after selling a commodity for 524 is the same as loss after selling it for Rs. 452. The cost price of the commodity is 

A dishonest dealer marks up the price of an article by 15% and gave a discount of 20%. He also uses 900gm instead of 1000gm. Find his profit percent.