8. My grandfather said to Xiao Ming, "I am seven times as old as you are now. In a few years, I will be six times as old as you. In a few years, I will be five times, four times, three times and two times as old as you respectively." do you know the age of my grandfather and Xiao Ming now?

8. My grandfather said to Xiao Ming, "I am seven times as old as you are now. In a few years, I will be six times as old as you. In a few years, I will be five times, four times, three times and two times as old as you respectively." do you know the age of my grandfather and Xiao Ming now?

My grandfather is x years old, and my grandson is y years old. In the following years, it will be a, B, c.x = 7Y, x + a = 6 (y + a) x + B = (y + b). The result is: y = 5a, y = 2B, y = C. because this year should be an integer year, y must be a multiple of 2.5: 10.20.30