Xiao Ming asked his grandfather how old he is this year, and he replied, "I am seven times your age this year, six times yours in a few years, and I will become yours in a few years."

Xiao Ming asked his grandfather how old he is this year, and he replied, "I am seven times your age this year, six times yours in a few years, and I will become yours in a few years."

Two years is six times, five years is five times, ten years is four times, twenty years is three times
Grandfather's age is 70
Xiao Ming is 10 years old