The population of a town is 16,600. It grows by 10% every year. What will the population be after 2 years?

💡 Solution & Explanation

Each year's growth is on the new population. After 1 year: 16,600 × 110/100 = 18,260. After 2 years: 18,260 × 110/100 = 20,086. Adding 20% of the original once gives 19,920, which forgets the growth on the first year's increase.