{"common":{"save":0,"post_id":"9121","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5210","post_id":"9121","mon_id":"1159414","chapter_id":"1159500","question":"<p>Mô\u0323t \u0111oa\u0300n ta\u0300u kh\u01a1\u0309i ha\u0300nh t\u01b0\u0300 ga Ha\u0300 Nô\u0323i lu\u0301c 5 gi\u01a1\u0300 15 phu\u0301t vào sáng th\u1ee9 Hai, \u0111ê\u0301n ga Sa\u0300i Go\u0300n lu\u0301c 19 gi\u01a1\u0300 t\u1ed1i th\u1ee9 Ba. Ho\u0309i \u0111oa\u0300n ta\u0300u \u0111o\u0301 \u0111i t\u01b0\u0300 ga Ha\u0300 Nô\u0323i \u0111ê\u0301n ga Sa\u0300i Go\u0300n hê\u0301t bao lâu?<\/p>","options":["<strong>A.<\/strong> 1 ngày 23 gi\u1edd 45 phút","<strong>B.<\/strong> 2 ngày 13 gi\u1edd 45 phút","<strong>C.<\/strong> 2 ngày 23 gi\u1edd 45 phút","<strong>D.<\/strong> 1 ngày 13 gi\u1edd 45 phút"],"correct":"4","level":"3","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 1 ngày 13 gi\u1edd 45 phút.<\/span><\/p><p>Th\u1ee9 Hai \u0111oàn tàu \u0111i h\u1ebft th\u1eddi gian là:<\/p><p>24 gi\u01a1\u0300 – 5 gi\u01a1\u0300 15 phu\u0301t = 18 gi\u1edd 45 phút<\/p><p>Th\u1ee9 Ba \u0111oàn tàu \u0111i h\u1ebft 19 gi\u1edd.<\/p><p>Th\u01a1\u0300i gian \u0111oa\u0300n ta\u0300u \u0111i t\u01b0\u0300 ga Ha\u0300 Nô\u0323i \u0111ê\u0301n ga Sa\u0300i Go\u0300n la\u0300:<\/p><p>18 gi\u1edd 45 phút + 19 gi\u01a1\u0300 = 37 gi\u01a1\u0300 45 phu\u0301t = 1 ngày 13 gi\u1edd 45 phút.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-05-01 11:14:57","option_type":"txt","len":2},{"id":"5212","post_id":"9121","mon_id":"1159414","chapter_id":"1159500","question":"<p>Nam h\u1ecfi Lan: "Bây gi\u1edd là m\u1ea5y gi\u1edd?". Lan \u0111áp l\u1ea1i: "Bi\u1ebft th\u1eddi gian t\u1eeb bây gi\u1edd \u0111\u1ebfn n\u1eeda \u0111êm b\u1eb1ng <span class=\"math-tex\">$\\dfrac{1}{3}$<\/span> th\u1eddi gian t\u1eeb lúc b\u1eaft \u0111\u1ea7u ngày hôm nay \u0111\u1ebfn bây gi\u1edd."<\/p><p>V\u1eady th\u1eddi \u0111i\u1ec3m Nam h\u1ecfi Lan là lúc m\u1ea5y gi\u1edd?<\/p>","options":["<strong>A.<\/strong> 20 gi\u1edd","<strong>B.<\/strong> 21 gi\u1edd","<strong>C.<\/strong> 19 gi\u1edd","<strong>D.<\/strong> 18 gi\u1edd"],"correct":"4","level":"3","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 18 gi\u1edd.<\/span><\/p><p>1 nga\u0300y = 24 gi\u01a1\u0300.<\/p><p>Coi khoa\u0309ng th\u01a1\u0300i gian t\u01b0\u0300 bây gi\u01a1\u0300 \u0111ê\u0301n n\u01b0\u0309a \u0111êm la\u0300 1 phâ\u0300n thi\u0300 khoa\u0309ng th\u01a1\u0300i gian t\u01b0\u0300 lu\u0301c b\u0103\u0301t \u0111â\u0300u hôm nay \u0111ê\u0301n bây gi\u01a1\u0300 la\u0300 3 phâ\u0300n b\u0103\u0300ng nhau nh\u01b0 thê\u0301.<\/p><p><span class=\"svgedit\"><svg height=\"140\" width=\"275\"> <g><title><\/title><rect fill=\"#fff\" height=\"142\" id=\"canvas_background\" width=\"277\" 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><title><\/title><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=\"4.66667\" xml:space=\"preserve\" y=\"20.83333\">B\u1eaft \u0111\u1ea7u<\/text> <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=\"11.33333\" xml:space=\"preserve\" y=\"41.5\">ngày<\/text> <g id=\"svg_20\"> <g id=\"svg_4\"> <line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"27.66667\" x2=\"27.66667\" y1=\"66.58333\" y2=\"94.58333\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"82.66667\" x2=\"82.66667\" y1=\"66.58333\" y2=\"94.58333\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"27.66667\" x2=\"82.66667\" y1=\"79.58333\" y2=\"79.33333\"><\/line> <\/g> <g id=\"svg_8\"> <line fill=\"none\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"83\" x2=\"83\" y1=\"66.58333\" y2=\"94.58333\"><\/line> <line fill=\"none\" id=\"svg_6\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"138\" x2=\"138\" y1=\"66.58333\" y2=\"94.58333\"><\/line> <line fill=\"none\" id=\"svg_7\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"83\" x2=\"138\" y1=\"79.58333\" y2=\"79.33333\"><\/line> <\/g> <g id=\"svg_12\"> <line fill=\"none\" id=\"svg_9\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"137.66667\" x2=\"137.66667\" y1=\"66.58333\" y2=\"94.58333\"><\/line> <line fill=\"none\" id=\"svg_10\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"192.66667\" x2=\"192.66667\" y1=\"66.58333\" y2=\"94.58333\"><\/line> <line fill=\"none\" id=\"svg_11\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"137.66667\" x2=\"192.66667\" y1=\"79.58333\" y2=\"79.33333\"><\/line> <\/g> <g id=\"svg_16\"> <line fill=\"none\" id=\"svg_13\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"193.00001\" x2=\"193.00001\" y1=\"66.58333\" y2=\"94.58333\"><\/line> <line fill=\"none\" id=\"svg_14\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"248.00001\" x2=\"248.00001\" y1=\"66.58333\" y2=\"94.58333\"><\/line> <line fill=\"none\" id=\"svg_15\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"193.00001\" x2=\"248.00001\" y1=\"79.58333\" y2=\"79.33333\"><\/line> <\/g> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_21\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"3.33333\" xml:space=\"preserve\" y=\"62.83333\">hôm nay<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_22\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"178.66667\" xml:space=\"preserve\" y=\"42\">Bây<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_23\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"240\" xml:space=\"preserve\" y=\"42\">N\u1eeda<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_24\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"179\" xml:space=\"preserve\" y=\"63\">gi\u1edd<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_25\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"239.66667\" xml:space=\"preserve\" y=\"63\">\u0111êm<\/text> <path d=\"m137.3607,30.27805c0,-19.23213 -1.23894,-31.08755 -5.84071,-33.45863l0.11799,-0.52691c6.66667,0.52691 8.49557,9.48434 8.49557,38.2008l0,39.78153c0,17.65141 0.41298,26.08193 4.71976,30.8241l0,0.52691c-4.24779,4.74217 -4.71976,13.17269 -4.71976,30.56064l0,42.41606c0,27.66265 -2.30088,35.56627 -8.49557,36.35663l-0.11799,-0.52559c4.71976,-3.16145 5.84071,-13.6996 5.84071,-33.72341l0,-42.41606c0,-17.91486 0.53097,-28.18956 4.95575,-32.66827l0,-0.52691c-4.48378,-4.74217 -4.95575,-15.80723 -4.95575,-33.72209l0,-41.0988z\" fill=\"#000000\" id=\"svg_26\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" transform=\"rotate(90 138.1866607666016,105.62584686279298) \"><\/path> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_27\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"116.50001\" xml:space=\"preserve\" y=\"130.25001\">24 gi\u1edd<\/text> <\/g> <\/svg><\/span><\/p><p>T\u1ed5ng s\u1ed1 ph\u1ea7n b\u1eb1ng nhau là 1 + 3 = 4 (ph\u1ea7n).<\/p><p>Th\u1eddi gian t\u1eeb lúc b\u1eaft \u0111\u1ea7u ngày hôm nay \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m Nam h\u1ecfi Lan là 24 : 4 x 3 = 18 (gi\u1edd).<\/p><p>V\u1eady th\u1eddi \u0111i\u1ec3m Nam h\u1ecfi Lan là lúc 18 gi\u1edd.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-05-01 11:27:56","option_type":"txt","len":0},{"id":"5214","post_id":"9121","mon_id":"1159414","chapter_id":"1159500","question":"<p>Nhà Nam có m\u1ed9t chiê\u0301c \u0111ô\u0300ng hô\u0300 cha\u0323y châ\u0323m 30 phu\u0301t so v\u01a1\u0301i th\u01a1\u0300i gian \u0111u\u0301ng. Nam ra kh\u1ecfi nhà vào th\u01a1\u0300i \u0111iê\u0309m \u0111ô\u0300ng hô\u0300 \u0111o\u0301 chi\u0309 12 gi\u01a1\u0300 40 phu\u0301t \u0111\u1ec3 \u0111\u1ebfn tr\u01b0\u1eddng trong th\u1eddi gian 10 phút. Bi\u1ebft th\u1eddi \u0111i\u1ec3m vào h\u1ecdc là 13 gi\u1edd 15 phút. H\u1ecfi Nam \u0111\u1ebfn tr\u1ec5 hay \u0111\u1ebfn s\u1edbm bao nhiêu phút?<\/p>","options":["<strong>A.<\/strong> Nam \u0111\u1ebfn s\u1edbm 5 phút.","<strong>B.<\/strong> Nam \u0111\u1ebfn tr\u1ec5 5 phút.","<strong>C.<\/strong> Nam \u0111\u1ebfn \u0111úng gi\u1edd.","<strong>D.<\/strong> Nam \u0111\u1ebfn tr\u1ec5 10 phút"],"correct":"2","level":"3","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> Nam \u0111\u1ebfn tr\u1ec5 5 phút.<\/span><\/p><p>Th\u1eddi \u0111i\u1ec3m \u0111úng th\u1ef1c t\u1ebf mà Nam ra kh\u1ecfi nhà là<\/p><p>12 gi\u1edd 40 phút + 30 phút = 12 gi\u1edd 70 phút = 13 gi\u1edd 10 phút<\/p><p>Th\u1eddi \u0111i\u1ec3m Nam \u0111\u1ebfn tr\u01b0\u1eddng là <\/p><p>13 gi\u1edd 10 phút + 10 phút = 13 gi\u1edd 20 phút.<\/p><p>V\u1eady Nam \u0111\u1ebfn tr\u1ec5 5 phút vì<\/p><p>13 gi\u1edd 20 phút – 13 gi\u1edd 15 phút = 5 phút.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-05-01 11:38:58","option_type":"txt","len":2}]}