1.

If a shopkeeper increases the marked price by 25% and agrees to give two successive discount of 10% each. How much percent does he gain by his dishonest dealing?1). 5%2). 10%3). 1.25%4). 15%

Answer»

Let the original PRICE be x

New price of SOAP = x + (25/100) × x = 125x/100 = 1.25x

Price after first discount = (90/100) × (125x/100) = 1.125x

Price PAID by PURCHASER = (90/100) × 1.125x = 1.0125x

Profit of shopkeeper = 1.0125x – x = 0.0125x

∴ Profit% = (0.0125x)/x × 100 = 1.25%



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