Given: The marked price of an item = Rs. 4000 Discount percentage for B = 5% The selling price of an item sold by B = Rs. 7700 Formula: Profit percentage =
(sellingprice–costprice)
(costprice)
× 100 Calculation: Cost price of an item for B = 7700 ×
100
110
= Rs. 7000 The cost price of an item for B = selling price of an item for A = Rs. 7000 ⇒ Cost price of an item for A = 4000 ×