A man bought an old printer for Rs 2200 and spent Rs 800 on its repair. He sold it for Rs 3600. Find his profit percentage.

30% 20% 15% 25%

20%

Total money spent on the old printer = buying price + repair                                     = Rs (2200 + 800) = Rs 3000 Selling price = Rs 3600 Profit = Rs 600 Profit % = $\frac{600}{3000}$ x 100 = 20%