{"common":{"save":0,"post_id":"8370","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"4231","post_id":"8370","mon_id":"1159414","chapter_id":"1159495","question":"<p>T&igrave;m t\u1ec9 s\u1ed1 ph\u1ea7n tr\u0103m c\u1ee7a hai s\u1ed1 67 v&agrave; 180.<\/p>","options":["<strong>A.<\/strong> 37,22%","<strong>B.<\/strong> 38,22%","<strong>C.<\/strong> 38,23%","<strong>D.<\/strong> 37,23%"],"correct":"1","level":"2","hint":"<p>T\u1ec9 s\u1ed1 ph\u1ea7n tr\u0103m c\u1ee7a hai s\u1ed1 ch&iacute;nh l&agrave; th\u01b0\u01a1ng c\u1ee7a hai s\u1ed1 \u0111&oacute;.<\/p><p>Th\u01b0\u01a1ng ch\u1ec9 l\u1ea5y \u0111\u1ebfn b\u1ed1n ch\u1eef s\u1ed1 \u1edf ph\u1ea7n th\u1eadp ph&acirc;n.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong> 37,22%.<\/span><\/p><p>Ta c&oacute; 67 : 180 = 0,3722... = 37,22%.<\/p><p><span class=\"svgedit\"><svg height=\"180\" width=\"145\"> <g> &lt;title&gt;&lt;\/title&gt; <rect fill=\"#ffd4aa\" height=\"182\" id=\"canvas_background\" width=\"147\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_9\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> &lt;title&gt;&lt;\/title&gt; <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"5\" xml:space=\"preserve\" y=\"15.25\">67<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"77.99995\" xml:space=\"preserve\" y=\"15\">180<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"77.99995\" xml:space=\"preserve\" y=\"35.75\">0,3722...<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"5\" xml:space=\"preserve\" y=\"45.25\">670<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_5\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"4.5\" xml:space=\"preserve\" y=\"74.75\">1300<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_6\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"21.5\" xml:space=\"preserve\" y=\"105.25\">400<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_7\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"30.5\" xml:space=\"preserve\" y=\"134.75\">400<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_8\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"47\" xml:space=\"preserve\" y=\"165.25\">40<\/text> <line fill=\"none\" id=\"svg_10\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"72.99995\" x2=\"72.99995\" y1=\"1.25\" y2=\"195.25\"><\/line> <line fill=\"none\" id=\"svg_11\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"72.99995\" x2=\"145\" y1=\"18.25\" y2=\"18\"><\/line> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_12\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"52\" xml:space=\"preserve\" y=\"175.25\">...<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_13\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"13\" xml:space=\"preserve\" y=\"30.25\">0<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_14\" stroke=\"#000\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"5\" xml:space=\"preserve\" y=\"59.625\">540<\/text> <line fill=\"none\" id=\"svg_15\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"1.5\" x2=\"31.5\" y1=\"31.625\" y2=\"31.625\"><\/line> <line fill=\"none\" id=\"svg_16\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"1\" x2=\"40\" y1=\"62.125\" y2=\"62.125\"><\/line> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_17\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"5\" xml:space=\"preserve\" y=\"89.625\">1260<\/text> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_18\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"0\" x2=\"49.5\" y1=\"92.125\" y2=\"92.125\"><\/line> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_19\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"22\" xml:space=\"preserve\" y=\"119.625\">360<\/text> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_20\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"18\" x2=\"58\" y1=\"122\" y2=\"122.125\"><\/line> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_21\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"30.5\" xml:space=\"preserve\" y=\"149.75\">360<\/text> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_22\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"29\" x2=\"66.5\" y1=\"152\" y2=\"152\"><\/line> <\/g> <\/svg><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-01-28 09:17:18","option_type":"txt","len":0},{"id":"4234","post_id":"8370","mon_id":"1159414","chapter_id":"1159495","question":"<p>T&iacute;nh t\u1ec9 s\u1ed1 ph\u1ea7n tr\u0103m c\u1ee7a hai s\u1ed1 38 v&agrave; 83.<\/p>","options":["<strong>A.<\/strong> 45,87%","<strong>B.<\/strong> 45,78%","<strong>C.<\/strong> 45,88%","<strong>D.<\/strong> 45,77%"],"correct":"2","level":"2","hint":"<p>Th\u01b0\u01a1ng ch\u1ec9 l\u1ea5y \u0111\u1ebfn b\u1ed1n ch\u1eef s\u1ed1 \u1edf ph\u1ea7n th\u1eadp ph&acirc;n.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> 45,78%.<\/span><\/p><p>Ta c&oacute; 38 : 83 = 0,4578... = 45,78%.<\/p><p><span class=\"svgedit\"><svg height=\"180\" width=\"135\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#ffffaa\" height=\"182\" id=\"canvas_background\" width=\"137\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>&lt;title&gt;&lt;\/title><text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"4.5\" xml:space=\"preserve\" y=\"15.25\">38<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"66.5\" xml:space=\"preserve\" y=\"15\">83<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"67\" xml:space=\"preserve\" y=\"35.125\">0,4578...<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"13.5\" xml:space=\"preserve\" y=\"30.125\">0<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_5\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"5\" xml:space=\"preserve\" y=\"44.625\">380<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_6\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"5\" xml:space=\"preserve\" y=\"60.125\">332<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_7\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"14\" xml:space=\"preserve\" y=\"74.625\">480<\/text> <line fill=\"none\" id=\"svg_8\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"2\" x2=\"34\" y1=\"31.125\" y2=\"31\"><\/line> <line fill=\"none\" id=\"svg_9\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"2.5\" x2=\"41.5\" y1=\"61.125\" y2=\"61.125\"><\/line> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_10\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"14\" xml:space=\"preserve\" y=\"89.625\">415<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"23\" xml:space=\"preserve\" y=\"105.125\">650<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"23\" xml:space=\"preserve\" y=\"119.625\">581<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"32\" xml:space=\"preserve\" y=\"134.125\">690<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"32\" xml:space=\"preserve\" y=\"149.625\">664<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_15\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"41\" xml:space=\"preserve\" y=\"164.625\">26<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"45.5\" xml:space=\"preserve\" y=\"177.125\">...<\/text> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_17\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"62\" x2=\"62\" y1=\"-0.375\" y2=\"179.625\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_18\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"61.5\" x2=\"130\" y1=\"18.625\" y2=\"18.625\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_19\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"12\" x2=\"52.5\" y1=\"91.125\" y2=\"91.125\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_20\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"21\" x2=\"61\" y1=\"121.125\" y2=\"120.625\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_21\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"28.5\" x2=\"60.5\" y1=\"151.125\" y2=\"151.125\"><\/line> <\/g> <\/svg><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-01-28 09:30:08","option_type":"txt","len":0},{"id":"4236","post_id":"8370","mon_id":"1159414","chapter_id":"1159495","question":"<p>Trong 50 kg n\u01b0\u1edbc bi\u1ec3n c&oacute; 1,8 kg mu\u1ed1i. T&iacute;nh t\u1ec9 ph\u1ea7n tr\u0103m c\u1ee7a l\u01b0\u1ee3ng mu\u1ed1i trong n\u01b0\u1edbc bi\u1ec3n.<\/p>","options":["<strong>A.<\/strong> 0,036%","<strong>B.<\/strong> 0,36%","<strong>C.<\/strong> 36%","<strong>D.<\/strong> 3,6%"],"correct":"4","level":"2","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong> 3,6%.<\/span><\/p><p>T\u1ec9 s\u1ed1 ph\u1ea7n tr\u0103m c\u1ee7a&nbsp;l\u01b0\u1ee3ng mu\u1ed1i trong n\u01b0\u1edbc bi\u1ec3n l&agrave; 1,8 : 50 = 0,036 = 3,6%.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-01-29 07:49:30","option_type":"txt","len":0}]}