{
  "schemaVersion": 1,
  "page": {
    "type": "problem",
    "slug": "des-vaches-a-la-meme-masse",
    "title": "Des vaches à la (même) masse",
    "language": "fr"
  },
  "references": [
    {
      "key": "initial",
      "text": "Un oral très classiques des concours ENS et polytechnique (ENS MP/PSI 2014, ENS MP 2009, ESPCI 2025 etc).",
      "url": null,
      "locator": null,
      "note": null,
      "role": "SOURCE",
      "bibliography": null
    }
  ]
}