{"id":"aqua_rat:32609be4725bb9bd17732794700c1f22","source_id":"aqua_rat","source_item_id":"32609be4725bb9bd17732794700c1f22","external_id":null,"program":null,"section":"math","category_code":"PHM","category":"Preparing for Higher Math","subcategory_code":null,"subcategory":null,"form_id":null,"passage_id":null,"position":null,"scored":true,"layout_warning":null,"stem":"An aeroplane flies along the four sides of a square at the speeds of 200, 400, 600 and 800km/hr. Find the average speed of the plane around the field?","stimulus":"","stimulus_html":null,"stem_html":"<p>An aeroplane flies along the four sides of a square at the speeds of 200, 400, 600 and 800km/hr. Find the average speed of the plane around the field?</p>","rationale_html":"<p>Let the each side of the square is x km</p><p>average speed of plane is y km/hr</p><p>(x/200)+(x/400)+(x/600)+(x/800) = 4x/y</p><p>25x/2400 = 4x/y</p><p>y= 384 km/hr</p><p>Answer is A</p>","correct_answer":["A"],"equiv_key":"1888f8af54ce0fd7d5e24cdd","has_media":false,"has_mathml":false,"has_table":false,"section_label":"Mathematics","options":[{"label":"A","content_html":"<p>384</p>","ord":0},{"label":"B","content_html":"<p>562</p>","ord":1},{"label":"C","content_html":"<p>458</p>","ord":2},{"label":"D","content_html":"<p>156</p>","ord":3},{"label":"E","content_html":"<p>452</p>","ord":4}],"passage":null,"attribution":{"source_id":"aqua_rat","source_name":"AQuA-RAT algebra word problems with rationales","rights_holder":"Google DeepMind and the AQuA-RAT contributors","canonical_url":"https://github.com/google-deepmind/AQuA","retrieved_from":"https://raw.githubusercontent.com/google-deepmind/AQuA/master/","attribution":"Algebra word problems from the AQuA-RAT dataset (Ling et al., 2017), published by Google DeepMind under the Apache License 2.0.","disclaimer":"AQuA-RAT items are crowdsourced algebra problems, not ACT questions. They carry five answer choices in the pre-2025 ACT Mathematics style and no ACT reporting category. Useful for drilling Preparing for Higher Math content; not a substitute for a real form.","license":"Apache License 2.0. Crowdsourced by DeepMind and published for free use, including commercially.","redistributable":true,"item_count":508},"equivalents":[]}