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Home Lớp 5 Toán lớp 5 - Sách Kết nối tri thức Bài 44. Luyện tập chung về tỷ sốBài tập trung bình

{"common":{"save":0,"post_id":"8382","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"4348","post_id":"8382","mon_id":"1159414","chapter_id":"1159495","question":"L\u1edbp 5A có 35 h\u1ecdc sinh, trong \u0111ó có 20 h\u1ecdc sinh nam và còn l\u1ea1i là h\u1ecdc sinh n\u1eef. Tìm t\u1ec9 s\u1ed1 c\u1ee7a s\u1ed1 h\u1ecdc sinh nam và s\u1ed1 h\u1ecdc sinh n\u1eef.<\/p>","options":["A.<\/strong> $\\dfrac{3}{4}$<\/span>","B.<\/strong> $\\dfrac{3}{7}$<\/span>","C.<\/strong> $\\dfrac{4}{7}$<\/span>","D.<\/strong> $\\dfrac{4}{3}$<\/span>"],"correct":"4","level":"2","hint":"","answer":"Ch\u1ecdn D.<\/strong> $\\dfrac{4}{3}$<\/span>.<\/span><\/p>S\u1ed1 h\u1ecdc sinh n\u1eef là 35 – 20 = 15 (h\u1ecdc sinh).<\/p>T\u1ec9 s\u1ed1 c\u1ee7a s\u1ed1 h\u1ecdc sinh nam và s\u1ed1 h\u1ecdc sinh n\u1eef là $\\dfrac{20}{15}=\\dfrac{4}{3}$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-01 10:11:37","option_type":"math","len":0},{"id":"4352","post_id":"8382","mon_id":"1159414","chapter_id":"1159495","question":"M\u1ed9t l\u1edbp h\u1ecdc có t\u1ed5ng s\u1ed1 60 sinh viên. T\u1ec9 s\u1ed1 c\u1ee7a s\u1ed1 sinh viên nam và s\u1ed1 sinh viên n\u1eef là $\\dfrac{3}{2}$<\/span>. Tìm s\u1ed1 sinh viên nam và s\u1ed1 sinh viên n\u1eef.<\/p>","options":["A.<\/strong> 36 sinh viên nam, 24 sinh viên n\u1eef","B.<\/strong> 35 sinh viên nam, 25 sinh viên n\u1eef","C.<\/strong> 33 sinh viên nam, 27 sinh viên n\u1eef","D.<\/strong> 34 sinh viên nam, 26 sinh viên n\u1eef"],"correct":"1","level":"2","hint":"","answer":"Ch\u1ecdn A.<\/strong> 36 sinh viên nam, 24 sinh viên n\u1eef.<\/span><\/p>Ta có s\u01a1 \u0111\u1ed3 <svg height=\"100\" width=\"360\"> <g> <title><\/title> <rect fill=\"#d4ffaa\" height=\"102\" id=\"canvas_background\" width=\"362\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> <title><\/title> <g id=\"svg_4\"> <line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"67\" x2=\"67\" y1=\"23.25\" y2=\"38.25\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"67\" x2=\"112\" y1=\"31.25\" y2=\"31.25\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"112\" x2=\"112\" y1=\"23.25\" y2=\"38.25\"><\/line> <\/g> <g id=\"svg_8\"> <line fill=\"none\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"112\" x2=\"112\" y1=\"23.25\" y2=\"38.25\"><\/line> <line fill=\"none\" id=\"svg_6\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"112\" x2=\"157\" y1=\"31.25\" y2=\"31.25\"><\/line> <line fill=\"none\" id=\"svg_7\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"157\" x2=\"157\" y1=\"23.25\" y2=\"38.25\"><\/line> <\/g> <g id=\"svg_12\"> <line fill=\"none\" id=\"svg_9\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"157\" x2=\"157\" y1=\"23.25\" y2=\"38.25\"><\/line> <line fill=\"none\" id=\"svg_10\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"157\" x2=\"202\" y1=\"31.25\" y2=\"31.25\"><\/line> <line fill=\"none\" id=\"svg_11\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"202\" x2=\"202\" y1=\"23.25\" y2=\"38.25\"><\/line> <\/g> <g id=\"svg_16\"> <line fill=\"none\" id=\"svg_13\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"67\" x2=\"67\" y1=\"63.25\" y2=\"78.25\"><\/line> <line fill=\"none\" id=\"svg_14\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"67\" x2=\"112\" y1=\"71.25\" y2=\"71.25\"><\/line> <line fill=\"none\" id=\"svg_15\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"112\" x2=\"112\" y1=\"63.25\" y2=\"78.25\"><\/line> <\/g> <g id=\"svg_20\"> <line fill=\"none\" id=\"svg_17\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"112\" x2=\"112\" y1=\"63.25\" y2=\"78.25\"><\/line> <line fill=\"none\" id=\"svg_18\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"112\" x2=\"157\" y1=\"71.25\" y2=\"71.25\"><\/line> <line fill=\"none\" id=\"svg_19\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"157\" x2=\"157\" y1=\"63.25\" y2=\"78.25\"><\/line> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_21\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"4\" xml:space=\"preserve\" y=\"37.25\">Nam<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_22\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"4\" xml:space=\"preserve\" y=\"76.25\">N\u1eef<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_23\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(1.570000886917114,0,0,2.443360151715424,-111.56018447875977,-68.97426072817831) \" x=\"206.5414\" xml:space=\"preserve\" y=\"54.70563\">}<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_24\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"229\" xml:space=\"preserve\" y=\"57.25\">60 sinh viên<\/text> <\/g> <\/svg><\/span>.<\/p>T\u1ed5ng s\u1ed1 ph\u1ea7n b\u1eb1ng nhau là 3 + 2 = 5 (ph\u1ea7n).<\/p>S\u1ed1 sinh viên nam là 60 : 5 x 3 = 36 (sinh viên).<\/p>S\u1ed1 sinh viên n\u1eef là 60 – 36 = 24 (sinh viên).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-01 10:18:21","option_type":"txt","len":2},{"id":"4354","post_id":"8382","mon_id":"1159414","chapter_id":"1159495","question":"Chi\u1ec1u dài th\u1eadt c\u1ee7a khu vui ch\u01a1i là 60 m. H\u1ecfi trên b\u1ea3n \u0111\u1ed3 t\u1ec9 l\u1ec7 1 : 1000 thì chi\u1ec1u dài c\u1ee7a khu vui ch\u01a1i \u0111\u01b0\u1ee3c v\u1ebd là bao nhiêu?<\/p>","options":["A.<\/strong> 60 cm","B.<\/strong> 6 cm","C.<\/strong> 600 cm","D.<\/strong> 6000 cm"],"correct":"2","level":"2","hint":"","answer":"Ch\u1ecdn B.<\/strong> 6 cm.<\/span><\/p>60 m = 6000 cm.<\/p>Trên b\u1ea3n \u0111\u1ed3 t\u1ec9 l\u1ec7 1 : 1000 thì 60 m \u1ee9ng v\u1edbi \u0111\u1ed9 dài là 6000 : 1000 = 6 (cm).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-01 10:21:55","option_type":"txt","len":0}]}