{"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>Bác Mai \u0111em 30 kg cà chua ra ch\u1ee3 bán. Bác \u0111ã bán \u0111\u01b0\u1ee3c <span class=\"math-tex\">$\\dfrac{2}{5}$<\/span> s\u1ed1 ki-lô-gam cà chua. Bi\u1ebft 1 kg cà chua bác bán v\u1edbi giá là 12000 \u0111\u1ed3ng. H\u1ecfi bác Mai thu \u0111\u01b0\u1ee3c bao nhiêu 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>Bác Mai \u0111ã bán \u0111\u01b0\u1ee3c s\u1ed1 ki-lô-gam cà chua là:<\/p><p><span class=\"math-tex\">$30 \\times \\dfrac{2}{5}=\\dfrac{60}{5}=12$<\/span> (kg)<\/p><p>S\u1ed1 ti\u1ec1n bác Mai thu \u0111\u01b0\u1ee3c là:<\/p><p>12 x 12000 = 144 000 (\u0111\u1ed3ng)<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 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 có 24 viên bi, trong \u0111ó <span class=\"math-tex\">$\\dfrac{1}{3}$<\/span> s\u1ed1 viên bi c\u1ee7a Nam là bi màu \u0111\u1ecf, còn l\u1ea1i là bi màu xanh. Tính s\u1ed1 viên bi màu xanh c\u1ee7a Nam.<\/p>","options":["18","8","16","14"],"correct":"3","level":"2","hint":"","answer":"<p>S\u1ed1 viên bi màu \u0111\u1ecf c\u1ee7a Nam là:<\/p><p><span class=\"math-tex\">$24 \\times \\dfrac{1}{3}=8$<\/span> (viên)<\/p><p>S\u1ed1 viên bi màu xanh c\u1ee7a Nam là:<\/p><p>24 – 8 = 16 (viên)<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>bông 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>Tìm X, bi\u1ebft: <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> <span class=\"math-tex\">$X=\\dfrac{11}{2}-\\dfrac{7}{3}$<\/span><\/p><p> <span class=\"math-tex\">$X=\\dfrac{33}{6}-\\dfrac{14}{6}$<\/span><\/p><p> <span class=\"math-tex\">$X=\\dfrac{19}{6}$<\/span><\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> <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}]}