{"common":{"save":0,"post_id":"4902","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8912","post_id":"4902","mon_id":"1158113","chapter_id":"1158138","question":"<p>S\u1ed1 nào sau \u0111ây là m\u1ed9t b\u1ed9i chung c\u1ee7a 5 và 6 ?<\/p>","options":["30","40","50","60"],"correct":"[\"1\",\"4\"]","level":"1","hint":"<p>B\u1ed9i chung c\u1ee7a hai hay nhi\u1ec1u s\u1ed1 là b\u1ed9i chung c\u1ee7a t\u1ea5t c\u1ea3 các s\u1ed1 \u0111ó.<\/p>","answer":"<p>Trong các s\u1ed1 30 , 40 , 50 , 60 thì b\u1ed9i chung c\u1ee7a 5 và 6 là: <\/p><p>30 vì 30 \u22ee 5 và 30 \u22ee 6.<\/p><p>60 vì 60 \u22ee 5 và 60 \u22ee 6.<\/p><p>V\u1eady các \u0111áp án \u0111úng là <strong><span style=\"color:#16a085;\">30<\/span><\/strong> ; <span style=\"color:#16a085;\"><strong>60<\/strong><\/span><\/p>","type":"checkbox","extra_type":"balloon","time":"0","user_id":"132","test":"1","date":"2021-10-10 02:54:22","option_type":"txt","len":0},{"id":"8918","post_id":"4902","mon_id":"1158113","chapter_id":"1158138","question":"<p>Tìm t\u1eadp h\u1ee3p các b\u1ed9i c\u1ee7a 15 nh\u1ecf h\u01a1n 60.<\/p>","options":["{0 ; 15 ; 30 ; 45 ; 60}","{0 ; 15 ; 30 ; 45}","{15 ; 30 ; 45 ; 60}"],"correct":"2","level":"1","hint":"","answer":"<p>B\u1ed9i c\u1ee7a 15 là 0 ; 15 ; 30 ; 45 ; 60 ; ...<\/p><p>T\u1eadp các b\u1ed9i c\u1ee7a 15 nh\u1ecf h\u01a1n 60 là {0 ; 15 ; 30 ; 45}<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>{0 ; 15 ; 30 ; 45}<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-10 03:05:17","option_type":"txt","len":2},{"id":"8921","post_id":"4902","mon_id":"1158113","chapter_id":"1158138","question":"<p>Tìm t\u1eadp h\u1ee3p các b\u1ed9i chung c\u1ee7a 4 và 6.<\/p>","options":["{ 0 ; 4 ; 12 ; 24 ; 36 ; ... }","{ 0 ; 6 ; 12 ; 24 ; 36 ; ... }","{ 0 ; 12 ; 24 ; 36 ; ... }"],"correct":"3","level":"1","hint":"","answer":"<p>Ta có:<\/p><p>B(4) = { 0 ; 4 ; 8 ; 12 ; 16 ; 20 ; 24 ; 28 ; 32 ; 36 ; ... }<\/p><p>B(6) = { 0 ; 6 ; 12 ; 18 ; 24 ; 30 ; 36 ; ...}<\/p><p>Suy ra BC(4, 6) = { 0 ; 12 ; 24 ; 36 ; ... }<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>{ 0 ; 12 ; 24 ; 36 ; ... }<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-10 03:09:36","option_type":"txt","len":2}]}
