{"id":"cb_question_bank:1c66534a-b6cf-4ab0-883f-c56565677b7c","source_id":"cb_question_bank","source_item_id":"1c66534a-b6cf-4ab0-883f-c56565677b7c","external_id":"a824dc18-95e2-4efa-b635-884db6f2eeef","ibn":null,"question_id":"be35c117","program":"SAT","module":"math","domain_code":"Q","domain":"Problem-Solving and Data Analysis","skill_code":"Q.A.","skill":"Ratios, rates, proportional relationships, and units","difficulty":"E","score_band":1,"answer_type":"mcq","answer_source":"key","layout_warning":null,"form_id":null,"module_number":null,"position":null,"stem":"A wind turbine completes 900 revolutions in 50 minutes. At this rate, how many revolutions per minute does this turbine complete?","stimulus":"","stimulus_html":null,"stem_html":"<p>A wind turbine completes <math alttext=\"900\"><mn>900</mn>\n</math> revolutions in <math alttext=\"50\"><mn>50</mn>\n</math> minutes. At this rate, how many revolutions per minute does this turbine complete?</p>","rationale_html":"<p style=\"text-align: left;\">Choice A is correct. Dividing the number of revolutions by the number of minutes gives the number of revolutions the turbine completes per minute. It’s given that the wind turbine completes <math alttext=\"900\"><mn>900</mn>\n</math> revolutions in <math alttext=\"50\"><mn>50</mn>\n</math> minutes. Therefore, at this rate, this turbine completes <math alttext=\"StartFraction 900 Over 50 EndFraction\"><mfrac><mn>900</mn><mn>50</mn></mfrac></math>, or <math alttext=\"18\"><mn>18</mn>\n</math>, revolutions per minute.</p>\n<p>Choice B is incorrect and may result from conceptual or calculation errors.</p>\n<p>Choice C is incorrect and may result from conceptual or calculation errors.</p>\n<p>Choice D is incorrect and may result from conceptual or calculation errors.</p>","correct_answer":["A"],"has_media":false,"has_mathml":true,"has_table":false,"source_created_at":"2023-08-02T20:25:59.829000+00:00","source_updated_at":"2023-08-02T20:25:59.829000+00:00","options":[{"label":"A","content_html":"<p><math alttext=\"18\"><mn>18</mn>\n</math></p>","ord":0},{"label":"B","content_html":"<p><math alttext=\"850\"><mn>850</mn>\n</math></p>","ord":1},{"label":"C","content_html":"<p><math alttext=\"950\"><mn>950</mn>\n</math></p>","ord":2},{"label":"D","content_html":"<p><math alttext=\"1,400\"><mn>1,400</mn>\n</math></p>","ord":3}],"attribution":{"source_id":"cb_question_bank","source_name":"College Board digital SAT question bank (community dump)","rights_holder":"College Board","canonical_url":"https://satsuitequestionbank.collegeboard.org/","retrieved_from":"https://raw.githubusercontent.com/mdn522/sat-question-bank/main/data/cb-digital-questions.json","attribution":"SAT practice questions © College Board, from the official SAT Suite Question Bank. Retrieved via the community dump at github.com/mdn522/sat-question-bank.","disclaimer":"SAT® and PSAT/NMSQT® are trademarks registered by the College Board, which is not affiliated with, does not sponsor, and does not endorse this project.","license":"College Board copyright; source repository carries no licence. Local use only.","redistributable":false,"item_count":2017}}