{"common":{"save":0,"post_id":"6941","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2368","post_id":"6941","mon_id":"1159012","chapter_id":"1159019","question":"<p>Bi\u1ebft <span class=\"math-tex\">$\\dfrac{3}{2}=\\dfrac{x}{4}=\\dfrac{y}{6}$<\/span>.<\/p><p><span style=\"color:#2980b9;\">Khi \u0111ó x = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> ; y = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> .<\/span><\/p>","options":"","correct":["[\"6\",\"9\"]"],"level":"3","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{3}{2}=\\dfrac{3\\mathbf{x}2}{2\\mathbf{x}2}=\\dfrac{6}{4}$<\/span> , do \u0111ó x = 6.<\/p><p><span class=\"math-tex\">$\\dfrac{3}{2}=\\dfrac{3\\mathbf{x}3}{2\\mathbf{x}3}=\\dfrac{9}{6}$<\/span> , do \u0111ó y = 9.<\/p><p>Các s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t là <span style=\"color:#16a085;\"><strong>6<\/strong><\/span> và <span style=\"color:#16a085;\"><strong>9<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-01-31 02:35:49"},{"id":"2369","post_id":"6941","mon_id":"1159012","chapter_id":"1159019","question":"<p>Bi\u1ebft <span class=\"math-tex\">$\\dfrac{1}{2}=\\dfrac{4}{x}=\\dfrac{8}{y}$<\/span> .<\/p><p>Khi \u0111ó x = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> ; y = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> .<\/p>","options":"","correct":["[\"8\",\"16\"]"],"level":"3","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{1}{2}=\\dfrac{1\\mathbf{x}4}{2\\mathbf{x}4}=\\dfrac{4}{8}$<\/span>, do \u0111ó x = 8.<\/p><p><span class=\"math-tex\">$\\dfrac{1}{2}=\\dfrac{1\\mathbf{x}8}{2\\mathbf{x}8}=\\dfrac{8}{16}$<\/span>, do \u0111ó y = 16.<\/p><p>Các s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t là <span style=\"color:#16a085;\"><strong>8<\/strong><\/span> và <span style=\"color:#16a085;\"><strong>16<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-01-31 02:39:09"},{"id":"2371","post_id":"6941","mon_id":"1159012","chapter_id":"1159019","question":"<p>Bi\u1ebft <span class=\"math-tex\">$\\dfrac{15}{45}=\\dfrac{5}{x}=\\dfrac{1}{y}$<\/span> .<\/p><p>Khi \u0111ó x = <input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/> ; y = <input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/>.<\/p>","options":["<strong>A.<\/strong> x = 15; y = 3.","<strong>B.<\/strong> x = 12; y = 3.","<strong>C.<\/strong> x = 15; y = 4.","<strong>D.<\/strong> x = 12; y = 4."],"correct":"1","level":"3","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{15}{45}=\\dfrac{15:3}{45:3}=\\dfrac{5}{15}$<\/span> , do \u0111ó <span style=\"color:#16a085;\">x = 15<\/span>.<\/p><p><span class=\"math-tex\">$\\dfrac{15}{45}=\\dfrac{15:15}{45:15}=\\dfrac{1}{3}$<\/span> , do \u0111ó <span style=\"color:#16a085;\">y = 3<\/span>.<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> x = 15; y = 3.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-01-31 02:42:40","option_type":"txt","len":2}]}
