{"common":{"save":0,"post_id":"8510","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"4719","post_id":"8510","mon_id":"1159414","chapter_id":"1159498","question":"<p>\u0110\u01a1n v\u1ecb n&agrave;o d\u01b0\u1edbi \u0111&acirc;y <strong>kh&ocirc;ng<\/strong> ph\u1ea3i \u0111\u01a1n v\u1ecb \u0111o th\u1eddi gian?<\/p>","options":["<strong>A.<\/strong> Th\u1ebf k\u1ec9.","<strong>B.<\/strong> Ph&uacute;t.","<strong>C.<\/strong> Th&aacute;ng.","<strong>D.<\/strong> T\u1ea5n."],"correct":"4","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;T\u1ea5n.<\/span><\/p><p>C&aacute;c \u0111\u01a1n v\u1ecb \u0111o th\u1eddi gian l&agrave; th\u1ebf k\u1ec9, ph&uacute;t, th&aacute;ng.<\/p><p>T\u1ea5n l&agrave; \u0111\u01a1n v\u1ecb \u0111o kh\u1ed1i l\u01b0\u1ee3ng.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-04-08 08:44:11","option_type":"txt","len":2},{"id":"4722","post_id":"8510","mon_id":"1159414","chapter_id":"1159498","question":"<p>\u0110\u1ed5i c&aacute;c \u0111\u01a1n v\u1ecb \u0111o th\u1eddi gian sau:<\/p><p>15 ph&uacute;t 30 gi&acirc;y =&nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&nbsp;gi&acirc;y<\/p><p>2 gi\u1edd 45 ph&uacute;t =&nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&nbsp;ph&uacute;t<\/p>","options":"","correct":["[\"930\",\"165\"]"],"level":"1","hint":"<p>1 ph&uacute;t = 60 gi&acirc;y<\/p><p>1 gi\u1edd = 60 ph&uacute;t<\/p>","answer":"<p>15 ph&uacute;t 30 gi&acirc;y =&nbsp;15 x 60 + 30 = <strong>930<\/strong> gi&acirc;y.<\/p><p>2 gi\u1edd 45 ph&uacute;t =&nbsp;2 x 60 + 45 = <strong>165<\/strong> ph&uacute;t .<\/p><p>V\u1eady c&aacute;c s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t l&agrave; <span style=\"color:#16a085;\"><strong>930<\/strong><\/span> v&agrave; <span style=\"color:#16a085;\"><strong>165<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2025-04-08 08:50:34"},{"id":"4723","post_id":"8510","mon_id":"1159414","chapter_id":"1159498","question":"<p>\u0110\u1ed5i: 81 gi&acirc;y =&nbsp;&lt;input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/&gt;&nbsp;ph&uacute;t.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{27}{20}$<\/span>.","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{20}{27}$<\/span>.","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{27}{60}$<\/span>.","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{81}{20}$<\/span>."],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{27}{20}$<\/span>.<\/span><\/p><p>81 gi&acirc;y =&nbsp;<span class=\"math-tex\">$\\dfrac{81}{60}=\\dfrac{27}{20}$<\/span>&nbsp;ph&uacute;t.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-04-08 08:53:20","option_type":"math","len":0}]}