{"common":{"save":0,"post_id":"6879","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2036","post_id":"6879","mon_id":"1159012","chapter_id":"1159015","question":"<p>Nhà bác Mai có 7 bao thóc t\u1ebb v\u1edbi t\u1ed5ng cân n\u1eb7ng là 420kg và 5 bao thóc n\u1ebfp v\u1edbi t\u1ed5ng cân n\u1eb7ng là 240kg. H\u1ecfi trung bình m\u1ed7i bao thóc cân n\u1eb7ng bao nhiêu ki-lô-gam?<\/p>","options":["<strong>A.<\/strong> 54kg","<strong>B.<\/strong> 45kg","<strong>C.<\/strong> 50kg","<strong>D.<\/strong> 55kg"],"correct":"4","level":"3","hint":"","answer":"<p>Trung bình m\u1ed7i bao thóc cân n\u1eb7ng s\u1ed1 ki-lô-gam là:<\/p><p>(420 + 240) : (7 + 5) = 55 (kg)<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 55kg<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-12-17 04:43:41","option_type":"txt","len":0},{"id":"2038","post_id":"6879","mon_id":"1159012","chapter_id":"1159015","question":"<p>Ngày th\u1ee9 nh\u1ea5t c\u1eeda hàng bán \u0111\u01b0\u1ee3c 350 cái bánh mì. Ngày th\u1ee9 hai bán \u0111\u01b0\u1ee3c nhi\u1ec1u h\u01a1n ngày th\u1ee9 nh\u1ea5t là 40 cái. H\u1ecfi trung bình hai ngày c\u1eeda hàng bán \u0111\u01b0\u1ee3c bao nhiêu cái bánh mì?<\/p>","options":["<strong>A.<\/strong> 370 (cái)","<strong>B.<\/strong> 380 (cái)","<strong>C.<\/strong> 390 (cái)","<strong>D.<\/strong> 375 (cái)"],"correct":"1","level":"3","hint":"","answer":"<p>Ngày th\u1ee9 hai bán \u0111\u01b0\u1ee3c s\u1ed1 bánh mì là:<\/p><p>350 + 40 = 390 (cái)<\/p><p>Trung bình hai ngày c\u1eeda hàng bán \u0111\u01b0\u1ee3c s\u1ed1 cái bánh mì là:<\/p><p>(350 + 390) : 2 = 370 (cái)<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 370 (cái)<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-12-17 04:47:35","option_type":"txt","len":2},{"id":"2040","post_id":"6879","mon_id":"1159012","chapter_id":"1159015","question":"<p>Hai s\u1ed1 có trung bình c\u1ed9ng là 56. Bi\u1ebft m\u1ed9t s\u1ed1 là 40, tìm s\u1ed1 th\u1ee9 hai.<\/p>","options":["<strong>A.<\/strong> 70","<strong>B.<\/strong> 72","<strong>C.<\/strong> 71","<strong>D.<\/strong> 112"],"correct":"2","level":"3","hint":"","answer":"<p>T\u1ed5ng c\u1ee7a hai s\u1ed1 \u0111ó là:<\/p><p>56 x 2 = 112<\/p><p>S\u1ed1 th\u1ee9 hai là:<\/p><p>112 – 40 = 72<\/p><p>Ch\u1ecdn <span style=\"color:#e67e22;\"><\/span><span style=\"color:#16a085;\"><strong>B.<\/strong> 72<\/span><\/p>","type":"choose","extra_type":"sheep","time":"0","user_id":"131","test":"0","date":"2023-12-17 04:49:56","option_type":"txt","len":0}]}
