{"status": "success", "data": {"description_md": "It takes Mary $30$ minutes to walk uphill $1$ km from her home to school, but it takes her only $10$ minutes to walk from school to her home along the same route. What is her average speed, in km/hr, for the round trip? \n\n$\\mathrm{(A) \\ } 3\\qquad \\mathrm{(B) \\ } 3.125\\qquad \\mathrm{(C) \\ } 3.5\\qquad \\mathrm{(D) \\ } 4\\qquad \\mathrm{(E) \\ } 4.5$\n___\nFull credit goes to [MAA](https://maa.org/) for authoring these problems. These problems were taken on the [AOPS](https://artofproblemsolving.com/) website.", "description_html": "<p>It takes Mary  <span class=\"katex--inline\">30</span>  minutes to walk uphill  <span class=\"katex--inline\">1</span>  km from her home to school, but it takes her only  <span class=\"katex--inline\">10</span>  minutes to walk from school to her home along the same route. What is her average speed, in km/hr, for the round trip?</p>&#10;<p> <span class=\"katex--inline\">\\mathrm{(A) \\ } 3\\qquad \\mathrm{(B) \\ } 3.125\\qquad \\mathrm{(C) \\ } 3.5\\qquad \\mathrm{(D) \\ } 4\\qquad \\mathrm{(E) \\ } 4.5</span> </p>&#10;<hr><p>Full credit goes to <a href=\"https://maa.org/\">MAA</a> for authoring these problems. These problems were taken on the <a href=\"https://artofproblemsolving.com/\">AOPS</a> website.</p>", "hints_md": "", "hints_html": "", "editorial_md": "", "editorial_html": "", "flag_hint": "", "point_value": 2, "problem_name": "2003 AMC 12A Problem 4", "can_next": true, "can_prev": true, "nxt": "/problem/03_amc12A_p05", "prev": "/problem/03_amc12A_p03"}}