A shopkeeper incurs a loss of 20% after selling a machine for ₹4,800. In order to gain a profit of 20%, at what price should the shopkeeper sell the same machine?
Shakila incurs a loss of 10% after selling a machine part for ₹540. In order to gain a profit of 10%, at what price should Shakila sell the same part?
If the price of a grocery item consumed by a family increases by 25%, then by what percentage should its consumption reduce, so as to keep the expenditure on this item unchanged?
