Use of applied mathematics during hiring process for developers

Please solve a task. A train has a set of cars that connected and has same number of seats. Two old ladies always ride in the same car and sits in the seats numbered 144 and 155. While two old guys that are fighting constantly always take seats that are separated by one car minimum. They usually sit in seats numbered 208 and 222. How many seats there are in a car?

  1. 12
  2. 13
  3. p
  4. 11-13
  5. between 11 and 13
  6. 12
  7. 4
  8. at least 11, no more than 13
  9. 12
  10. Don't Know