{"common":{"save":0,"post_id":"6911","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2658","post_id":"6911","mon_id":"1159012","chapter_id":"1159024","question":"<p>B&aacute;c Mai \u0111em 30 kg c&agrave; chua ra ch\u1ee3 b&aacute;n. B&aacute;c \u0111&atilde; b&aacute;n \u0111\u01b0\u1ee3c&nbsp;<span class=\"math-tex\">$\\dfrac{2}{5}$<\/span>&nbsp;s\u1ed1 ki-l&ocirc;-gam c&agrave; chua. Bi\u1ebft 1 kg c&agrave; chua b&aacute;c b&aacute;n v\u1edbi gi&aacute;&nbsp;l&agrave; 12000&nbsp;\u0111\u1ed3ng. H\u1ecfi b&aacute;c Mai thu \u0111\u01b0\u1ee3c bao nhi&ecirc;u ti\u1ec1n?<\/p>","options":["<strong>A.<\/strong> 140 000 (\u0111\u1ed3ng)","<strong>B.<\/strong> 114 000 (\u0111\u1ed3ng)","<strong>C.<\/strong> 141 000 (\u0111\u1ed3ng)","<strong>D.<\/strong> 144 000 (\u0111\u1ed3ng)"],"correct":"4","level":"2","hint":"","answer":"<p>B&aacute;c Mai \u0111&atilde; b&aacute;n \u0111\u01b0\u1ee3c s\u1ed1&nbsp;ki-l&ocirc;-gam c&agrave; chua l&agrave;:<\/p><p><span class=\"math-tex\">$30 \\times \\dfrac{2}{5}=\\dfrac{60}{5}=12$<\/span>&nbsp;(kg)<\/p><p>S\u1ed1 ti\u1ec1n b&aacute;c Mai thu \u0111\u01b0\u1ee3c l&agrave;:<\/p><p>12 x 12000 = 144 000 (\u0111\u1ed3ng)<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;144 000 (\u0111\u1ed3ng)<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-13 02:06:51","option_type":"txt","len":2},{"id":"2659","post_id":"6911","mon_id":"1159012","chapter_id":"1159024","question":"<p>B\u1ea1n Nam c&oacute; 24 vi&ecirc;n bi, trong \u0111&oacute;&nbsp;<span class=\"math-tex\">$\\dfrac{1}{3}$<\/span>&nbsp;s\u1ed1 vi&ecirc;n bi c\u1ee7a Nam l&agrave; bi m&agrave;u&nbsp;\u0111\u1ecf, c&ograve;n l\u1ea1i l&agrave; bi m&agrave;u xanh.&nbsp;T&iacute;nh s\u1ed1 vi&ecirc;n bi m&agrave;u xanh c\u1ee7a Nam.<\/p>","options":["18","8","16","14"],"correct":"3","level":"2","hint":"","answer":"<p>S\u1ed1 vi&ecirc;n bi m&agrave;u \u0111\u1ecf c\u1ee7a Nam l&agrave;:<\/p><p><span class=\"math-tex\">$24 \\times \\dfrac{1}{3}=8$<\/span>&nbsp;(vi&ecirc;n)<\/p><p>S\u1ed1 vi&ecirc;n bi m&agrave;u xanh c\u1ee7a Nam l&agrave;:<\/p><p>24&nbsp;&ndash; 8 = 16 (vi&ecirc;n)<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>b&ocirc;ng hoa ch\u1ee9a s\u1ed1 16<\/strong><\/span>.<\/p>","type":"choose","extra_type":"flower","time":"0","user_id":"131","test":"0","date":"2024-02-13 02:09:44","option_type":"txt","len":0},{"id":"2661","post_id":"6911","mon_id":"1159012","chapter_id":"1159024","question":"<p>T&igrave;m X, bi\u1ebft:&nbsp;<span class=\"math-tex\">$\\dfrac{11}{2}-X=\\dfrac{7}{3}$<\/span><\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$X=\\dfrac{19}{6}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$X=\\dfrac{19}{12}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$X=\\dfrac{9}{6}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$X=\\dfrac{29}{6}$<\/span>"],"correct":"1","level":"2","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{11}{2}-X=\\dfrac{7}{3}$<\/span><\/p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class=\"math-tex\">$X=\\dfrac{11}{2}-\\dfrac{7}{3}$<\/span><\/p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class=\"math-tex\">$X=\\dfrac{33}{6}-\\dfrac{14}{6}$<\/span><\/p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class=\"math-tex\">$X=\\dfrac{19}{6}$<\/span><\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$X=\\dfrac{19}{6}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-13 02:13:06","option_type":"math","len":0}]}