{
  "question_id": 1175,
  "hints": [
    {"hint_level": 1, "hint": "To find the total age, add all three ages together."},
    {"hint_level": 2, "hint": "The three ages are 9, 5, and 7."},
    {"hint_level": 3, "hint": "9 + 5 = 14, then 14 + 7 = ?"}
  ]
}