An infinite set of numbers have this characteristic. Some examples: 0, 12 1, 13 2, 14 2.5, 14.5 Pick any number, add 12 to it, and the numbers you started with and ended with are your pair of numbers.
The cafeteria sold ten turkey sandwiches and they sold four ham sandwiches there are 6 more turkey than ham sold and 10 plus 4 is 14 so voalla your welcome
