{"id":18143,"date":"2024-05-10T12:33:47","date_gmt":"2024-05-10T12:33:47","guid":{"rendered":"https:\/\/soicau5010.minhngocxoso.com\/?p=18143"},"modified":"2024-05-10T12:33:47","modified_gmt":"2024-05-10T12:33:47","slug":"nuoi-cap-thi-nhu-the-nao-ty-le-la-bao-nhieu","status":"publish","type":"post","link":"https:\/\/ketqua886.com\/nuoi-cap-thi-nhu-the-nao-ty-le-la-bao-nhieu\/","title":{"rendered":"nu\u00f4i c\u1eb7p th\u00ec nh\u01b0 th\u1ebf n\u00e0o? t\u1ef7 l\u1ec7 l\u00e0 bao nhi\u00eau?"},"content":{"rendered":"
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T\u1ea5t c\u1ea3 m\u1ecdi ng\u01b0\u1eddi kh\u00f4ng bi\u1ebft \u0111\u00e3 c\u00f3 ai \u0111\u1eb7t c\u00e2u h\u1ecfi nh\u01b0 th\u1ebf n\u00e0y ch\u01b0a? M\u1ed9t c\u1eb7p l\u00f4 t\u00f4 v\u00e0 m\u1ed9t d\u00e0n \u0110B 54 con c\u00e1i n\u00e0o l\u1ee3i h\u01a1n? V\u00e0 c\u00e1ch ch\u01a1i l\u00e0m sao \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 nh\u1ea5t? V\u1eady h\u00e3y c\u00f9ng ch\u00fang t\u00f4i t\u00ecm hi\u1ec3u qua b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9:<\/p>\n\n\n\n
M\u1ed9t c\u1eb7p l\u00f4 t\u00f4 l\u00e0 2 con m\u00e0 c\u00f3 27 gi\u1ea3i, t\u1ee9c c\u01a1 h\u1ed9i c\u1ee7a m\u00ecnh s\u1ebd l\u00e0: 2\u00d727=54 con ch\u1ecdi v\u1edbi 100 con.<\/p>\n\n\n\n
M\u1ed9t con \u0110B ch\u1ec9 c\u00f3 1 gi\u1ea3i \u0110B n\u00ean c\u01a1 h\u1ed9i \u0103n l\u00e0 1\/100, nh\u01b0ng 54 con s\u1ebd l\u00e0 54\/100 (t\u1ea5t c\u1ea3 l\u00f4 t\u00f4 v\u00e0 \u0111\u1ec1 m\u00ecnh th\u1ed1ng nh\u1ea5t l\u00e0 1 \u0103n 80 cho d\u1ec5 t\u00ednh).<\/p>\n\n\n\n
R\u00f5 r\u00e0ng x\u00e9t v\u1ec1 l\u00fd thuy\u1ebft th\u00ec 1 c\u1eb7p l\u00f4 t\u00f4 ngang v\u1edbi \u0110B d\u00e0n 54 con.<\/p>\n\n\n\n
L\u00f4 t\u00f4 th\u00ec c\u00f3 2, 3, 4\u2026 nh\u00e1y, v\u00ec v\u1eady m\u1ecdi ng\u01b0\u1eddi lu\u00f4n ngh\u0129 r\u1eb1ng m\u00ecnh s\u1ebd \u0103n 2, 3, 4 nh\u00e1y n\u00ean ch\u1ecdn c\u00e1ch \u0111\u00e1nh l\u00f4 t\u00f4, nh\u01b0ng v\u1edbi m\u00ecnh th\u00ec lu\u00f4n mong \u0103n 1 nh\u00e1y l\u00e0 may l\u1eafm r\u1ed3i. Nh\u01b0ng l\u1ea1i c\u00f3 m\u1ed9t c\u00e2u h\u1ecfi \u0111\u1eb7t ra \u1edf \u0111\u00e2y, h\u00e0ng ng\u00e0y l\u00f4 t\u00f4 r\u01a1i trung b\u00ecnh \u00edt nh\u1ea5t 5\/27 con (c\u00f3 h\u00f4m l\u00ean \u0111\u1ebfn h\u01a1n 10 con l\u00f4 t\u00f4 r\u01a1i), v\u1eady th\u00ec t\u1ef7 l\u1ec7 \u0103n c\u1ee7a ch\u00fang ta gi\u1ea3m \u0111i hay t\u0103ng l\u00ean? Ng\u01b0\u1eddi n\u00e0y mong \u0103n 2, 3, 4 th\u00ec s\u1ed1 c\u1ee7a ng\u01b0\u1eddi kh\u00e1c s\u1ebd b\u1ecb gi\u1ea3m t\u1ef7 l\u1ec7 \u0103n c\u0169ng 2, 3 con \u0111i.<\/p>\n\n\n\n
1 \u0111\u1ea7u hay 1 \u0111\u00edt ch\u1ec9 c\u00f3 10 con \u0111\u00e1nh, 2 con t\u1ef7 l\u1ec7 \u0103n s\u1ebd l\u00e0 2\/10=20%, ng\u00e0y th\u1ee9 2 c\u01a1 h\u1ed9i \u0103n l\u00e0 40%, ng\u00e0y 3 l\u00e0 60 v\u00e0 ng\u00e0y 4 l\u00e0 80, \u0111\u1ebfn ng\u00e0y 5 s\u1ebd l\u00e0 100%, l\u00fd thuy\u1ebft l\u00e0 nh\u01b0 th\u1ebf nh\u01b0ng kh\u00f4ng c\u00f3 g\u00ec l\u00e0 ch\u00ednh x\u00e1c 100% c\u1ea3, b\u1edfi v\u00ec h\u00e0ng ng\u00e0y l\u00f4 t\u00f4 r\u01a1i v\u00e0 l\u00f4 t\u00f4 r\u01a1i 2 nh\u00e1y l\u00e0 r\u1ea5t nhi\u1ec1u, n\u00ean 100% kh\u00f4ng c\u00f2n kh\u1ea3 n\u0103ng n\u1eefa.<\/p>\n\n\n\n