{"id":"aqua_rat:c146f036fb936a0a77e207b4f9d856e2","source_id":"aqua_rat","source_item_id":"c146f036fb936a0a77e207b4f9d856e2","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":"There are two friends A and B. A starts with his car at the speed 40 kmph. B starts one hour later from the same place, in the same direction on his bike at the speed of 50 kmph. After how many hours will they meet ?","stimulus":"","stimulus_html":null,"stem_html":"<p>There are two friends A and B. A starts with his car at the speed 40 kmph. B starts one hour later from the same place, in the same direction on his bike at the speed of 50 kmph. After how many hours will they meet ?</p>","rationale_html":"<p>Friend A starts first , he covers the distance = 40 kmph x 1hr = 40 km</p><p>The second friend B started after 1 hour.</p><p>Relative Speed = 50 kmph - 40 kmph = 10 kmph</p><p>so, they will meet in = 40/10 = 4 hour.</p><p>C</p>","correct_answer":["C"],"equiv_key":"81637267cf116f91f269bd64","has_media":false,"has_mathml":false,"has_table":false,"section_label":"Mathematics","options":[{"label":"A","content_html":"<p>12 h</p>","ord":0},{"label":"B","content_html":"<p>6 h</p>","ord":1},{"label":"C","content_html":"<p>4 h</p>","ord":2},{"label":"D","content_html":"<p>11 h</p>","ord":3},{"label":"E","content_html":"<p>9 h</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":[]}