Profit, Loss and Discounts - CAT 2007 Question 4 the day : April 29, 2003 The question for the day is a sample practice problem in profit, loss, discounts, an Arithmetic Topic. Question If apples are bought at the rate of 30 for a rupee. How many apples must be sold for a rupee so as to gain 20%? 28 25 20 22 Correct Answer - 25 apples. Choice (2) Explanatory Answer The merchant makes a profit of 20%. This means that the merchant sells 30 apples for Rs.1.20 Therefore, selling price of 1 apple = (1.20/30) = Rs.0.04 or 4 paise The number of apples that can be sold for Rs.1.00 = Rs.1.00/0.04 = 25 apples.