For this puzzle to work, you can't just assume their ages to be integers - their ages have to be integers. In other words, for this puzzle to be solvable, two p

For this puzzle to work, you can't just assume their ages to be integers - their ages have to be integers. In other words, for this puzzle to be solvable, two people who are both X years old have to be considered to be exactly the same age, with neither elder than the other.