15% of the marked price of an item is equal to 25% of its cost price. If a discount of 25% is given on the sale of the item, then what will be the profit percentage?

25%

15% of the marked price of an item = 25% of its cost price

\(\frac{MP}{CP}\)  = \(\frac{25}{15}\) 

Discount = 25% on MP

Selling price = 75% of MP = 75% of 25 = 18.75

Profit = 18.75 - 15 = 3.75

Profit% = 3.75 × \(\frac{100}{15}\) = 25%