Does the questioner want to ask "A music player sells for 485 yuan, and Lily can save 51 yuan per month to buy it in at least a few months"? 10 months. According to the mathematical division budget, it is known that the price of the music player is 485 yuan, which is 51 yuan per month. 485 divided by 51 is found to be 9.5, so it will take at least ten months to buy it. This is a mathematical arithmetic. question.