{"common":{"save":0,"post_id":"4551","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6442","post_id":"4551","mon_id":"1158113","chapter_id":"1158119","question":"<p>Lan \u0111\u1ecdc h\u1ebft m\u1ed9t cu\u1ed1n&nbsp;s&aacute;ch d&agrave;y 70 trang trong hai ng&agrave;y. Ng&agrave;y th\u1ee9 nh\u1ea5t Lan \u0111\u1ecdc \u0111\u01b0\u1ee3c&nbsp;<span class=\"math-tex\">$\\dfrac{4}{7}$<\/span>&nbsp;s\u1ed1 trang cu\u1ed1n s&aacute;ch. H\u1ecfi ng&agrave;y th\u1ee9 nh\u1ea5t Lan \u0111\u1ecdc \u0111\u01b0\u1ee3c bao nhi&ecirc;u trang s&aacute;ch?<\/p>","options":["40","50","60"],"correct":"1","level":"1","hint":"<p>Mu\u1ed1n t&igrave;m&nbsp;&nbsp;<span class=\"math-tex\">$\\dfrac{m}{n}$<\/span>&nbsp; c\u1ee7a m\u1ed9t s\u1ed1&nbsp; &nbsp;<span class=\"math-tex\">$a$<\/span>&nbsp; cho tr\u01b0\u1edbc ta t&iacute;nh&nbsp;&nbsp;<span class=\"math-tex\">$a.\\dfrac{m}{n}$<\/span>&nbsp;.<\/p>","answer":"<p>S\u1ed1 trang s&aacute;ch Lan \u0111\u1ecdc \u0111\u01b0\u1ee3c trong ng&agrave;y th\u1ee9 nh\u1ea5t l&agrave;<\/p><p><span class=\"math-tex\">$70.\\dfrac{4}{7} = $<\/span>&nbsp; <strong><span style=\"color:#16a085;\">40&nbsp; (trang s&aacute;ch)<\/span><\/strong><\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp;<b><span style=\"color:#16a085;\"> 40<\/span> .<\/b><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"3","date":"2021-08-25 10:28:45","option_type":"number","len":0},{"id":"6443","post_id":"4551","mon_id":"1158113","chapter_id":"1158119","question":"<p>Mu\u1ed1n t&igrave;m <span class=\"frac123\"><span class=\"ts\">m<\/span><span class=\"ms\">n<\/span><\/span>&nbsp;c\u1ee7a m\u1ed9t s\u1ed1&nbsp;&nbsp;a&nbsp; cho tr\u01b0\u1edbc ta t&iacute;nh ?<\/p>","options":["<span class=\"math-tex\">$a.\\dfrac{m}{n}$<\/span>","<span class=\"math-tex\">$a:\\dfrac{m}{n}$<\/span>"],"correct":"1","level":"1","hint":"","answer":"<p>Mu\u1ed1n t&igrave;m <span class=\"math-tex\">$\\dfrac{m}{n}$<\/span>&nbsp;c\u1ee7a m\u1ed9t s\u1ed1&nbsp;&nbsp;<span class=\"math-tex\">$a$<\/span>&nbsp; cho tr\u01b0\u1edbc ta t&iacute;nh&nbsp; &nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$a.\\dfrac{m}{n}$<\/span><\/span>&nbsp; .<\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp;&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$a.\\dfrac{m}{n}$<\/span>&nbsp;.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2021-08-25 10:39:25","option_type":"math","len":0},{"id":"6444","post_id":"4551","mon_id":"1158113","chapter_id":"1158119","question":"<p>Mu\u1ed1n t&igrave;m&nbsp;m\u1ed9t s\u1ed1 bi\u1ebft&nbsp;&nbsp;<span class=\"frac123\"><span class=\"ts\">m<\/span><span class=\"ms\">n<\/span><\/span>&nbsp; c\u1ee7a n&oacute; bi\u1ebft&nbsp;&nbsp;<span class=\"frac123\"><span class=\"ts\">m<\/span><span class=\"ms\">n<\/span><\/span>&nbsp; c\u1ee7a n&oacute; b\u1eb1ng&nbsp;&nbsp;a, ta t&iacute;nh ?<\/p>","options":["<span class=\"math-tex\">$a.\\dfrac{m}{n}$<\/span>","<span class=\"math-tex\">$a:\\dfrac{m}{n}$<\/span>"],"correct":"2","level":"1","hint":"","answer":"<p>Mu\u1ed1n t&igrave;m&nbsp;m\u1ed9t s\u1ed1 bi\u1ebft&nbsp;&nbsp;<span class=\"math-tex\">$\\dfrac{m}{n}$<\/span>&nbsp; c\u1ee7a n&oacute; bi\u1ebft&nbsp;&nbsp;<span class=\"math-tex\">$\\dfrac{m}{n}$<\/span>&nbsp; c\u1ee7a n&oacute; b\u1eb1ng&nbsp;&nbsp;<span class=\"math-tex\">$a$<\/span>, ta t&iacute;nh&nbsp;&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$a:\\dfrac{m}{n}$<\/span><\/span>&nbsp;.<\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp;&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$a:\\dfrac{m}{n}$<\/span>&nbsp;.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2021-08-25 10:43:55","option_type":"math","len":0}]}