List of top Quantitative Aptitude Questions on Profit and Loss asked in NIFT

A dishonest shopkeeper professes to sell grains with only 4% profit, but uses a faulty weight and gives only 800 gm in place of 1 kg. The actual profit percentage of the shopkeeper is:
A shopkeeper sells an item with a loss of 5%. If he had sold it for Rs 120 more, he would have gained 15%. Find the cost price of the item.
A shopkeeper sold an item for ₹ 528 and suffered a loss of 4%. In order to get 10% profit, for how much should he have sold the item?
The incomes of A and B are in the ratio 9:4 and their expenditures are in the ratio 7:3. If A saves 30% of his income, then the ratio of their savings is:
After allowing a discount of 12% on the marked price, a shopkeeper still gains 21%. How much (in percentage) is the marked price above the cost price?
By selling an item at a discount of 20%, the profit is 20%. The profit percentage, if the item is sold at a discount of 10%, is:
Ajay buys an article with 20% discount on the marked price and sells at 8% discount on the marked price. What is his profit or loss percentage (%)?