A shopkeeper makes a 15% profit on a sale. He would have made 18%, if he had sold it for Rs.18 more. The cost price of the article is:ARs. 650BRs. 550CRs. 600DRs. 500Answer: C. Rs. 600 Read Explanation: Let the cost price = ₹xSelling price at 15% profit = (1.15x)Selling price at 18% profit = (1.18x)Given that the second selling price is ₹18 more:1.18x−1.15x=181.18x - 1.15x = 181.18x−1.15x=180.03x=180.03x = 180.03x=18x=180.03=600x = \frac{18}{0.03} = 600x=0.0318=600 Cost price of the article = ₹600 Read more in App