{"kind":"task","effective_mode":"full","benchmark":{"kind":"benchmark","effective_mode":"full","slug":"math","formal_name":"MATH","introduction":"MATH organises 12,500 high-school competition problems into seven subjects and five difficulty levels, each with a full worked solution. It underlies much of the later mathematics evaluation work; this catalogue imports the full test split: 5,000 problems across all seven subjects.","introduction_ja":"","introduction_en":"","category":"Category not supplied","task_count":null,"acquisition_status":"Acquisition status not supplied","official_url":"https://github.com/hendrycks/math","indexing_mode":"index","profile":{"resources":[],"task_format":"","scoring":"","metric":"","size":"","answer_access":"","license":"","citation":"","maintainer":"","released":"","why_hard":"","related":[],"history":"","construction":"","limitations":"","saturation":"","scores":[]}},"task_id":"9184a882-c938-53b4-bf8f-70135eec65af","task_key":"number~5ftheory--test--9184a882-c938-53b4-bf8f-70135eec65af","task_revision_id":"1","upstream_id":"","short_description":"The double factorial, denoted by $n!!$, returns the product of all of the odd…","config":"number_theory","split":"test","body":"{\"level\":\"Level 5\",\"problem\":\"The double factorial, denoted by $n!!$, returns the product of all of the odd integers that are less than or equal to $n$. For example, $7!! = 7 \\\\times 5 \\\\times 3 \\\\times 1$. What is the units digit of $1!! + 3!! + 5!! + 7!! + \\\\cdots + 49!!$?\",\"type\":\"Number Theory\"}","display_format":"math","language":"","answer_status":"published","assets":[],"source_url":"https://github.com/hendrycks/math","history":"initial import","indexing_mode":"index","subproblems":[],"grids":[]}