By selling an item for Rs.544, there is a loss of 15%. Find the purchase price of the item (in rupees).
640
640 is correct.
Cost price = selling price × 100 ÷ (100 − loss %).
A 15% loss means the selling price is 85% of the cost price.
Cost price \(=544\times\dfrac{100}{85}=640\), i.e. ₹640.
Check: 15% of ₹640 is ₹96, and \(640-96=544\).
A shopkeeper bought an item for Rs.240 and sold it for Rs.300. Find the profit percentage. (in %)
A shopkeeper bought an item for Rs.435 and sold it for Rs.348. Find the loss percentage. (in %)