{"id":17451,"date":"2024-05-16T11:27:01","date_gmt":"2024-05-16T11:27:01","guid":{"rendered":"https:\/\/soicau2019.minhngocxoso.com\/tim-hieu-ve-lo-de-dan-va-cach-danh-chac-an-nhat\/"},"modified":"2024-05-16T11:27:01","modified_gmt":"2024-05-16T11:27:01","slug":"tim-hieu-ve-lo-de-dan-va-cach-danh-chac-an-nhat","status":"publish","type":"post","link":"https:\/\/bachthulo2nhay.com\/tim-hieu-ve-lo-de-dan-va-cach-danh-chac-an-nhat\/","title":{"rendered":"T\u00ecm hi\u1ec3u v\u1ec1 l\u00f4 \u0111\u1ec1 d\u00e0n v\u00e0 c\u00e1ch \u0111\u00e1nh ch\u1eafc \u0103n nh\u1ea5t"},"content":{"rendered":"
\n
\u0110\u00e1nh l\u00f4 \u0111\u1ec1 d\u00e0n l\u00e0 g\u00ec? T\u1ea1i sao l\u1ea1i \u0111\u00e1nh l\u00f4 d\u00e0n m\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u1ed9c th\u1ee7 l\u00f4? N\u1ebfu \u0111\u00f3 l\u00e0 nh\u1eefng c\u00e2u h\u1ecfi m\u00e0 b\u1ea1n c\u1ea7n gi\u1ea3i \u0111\u00e1p th\u00ec h\u00e3y \u0111\u1ecdc ngay b\u00e0i vi\u1ebft n\u00e0y. \u0110\u01b0\u1ee3c c\u00e1c cao th\u1ee7 l\u00f4 \u0111\u1ec1 t\u1ed5ng h\u1ee3p chia s\u1ebd l\u1ea1i.<\/span><\/strong><\/p>\n
<\/span><\/strong><\/p>\n\u0110\u1ed1i v\u1edbi chuy\u1ec7n \u0111\u00e1nh c\u1ea3 d\u00e0n l\u00f4 nhi\u1ec1u con, c\u00f3 kh\u00f4ng \u00edt ng\u01b0\u1eddi s\u1ebd th\u1eafc m\u1eafc t\u1ea1i sao l\u1ea1i \u0111\u00e1nh nhi\u1ec1u con 1 l\u1ea7n nh\u01b0 v\u1eady? T\u1ea1i sao kh\u00f4ng \u0111\u00e1nh 1 hay 2 con l\u00f4 \u0111\u1ec3 h\u1ea1n ch\u1ebf l\u1ed7 qu\u00e1 nhi\u1ec1u khi thua hay \u0103n tr\u1ecdn v\u1eb9n khi th\u1eafng? T\u1ea1i sao ph\u1ea3i m\u1ea5t c\u00f4ng \u0111\u00e1nh nguy\u00ean c\u1ea3 d\u00e0n s\u1ed1 \u0111\u1ec3 r\u1ed3i ch\u1ec9 \u0103n r\u1ea5t \u00edt ho\u1eb7c th\u1eadm ch\u00ed h\u00f2a v\u1ed1n?<\/span><\/p>\nN\u1ebfu b\u1ea1n \u0111\u00e3 c\u00f3 nh\u1eefng th\u1eafc m\u1eafc \u0111\u00f3, r\u00f5 r\u00e0ng b\u1ea1n mu\u1ed1n hi\u1ec3u h\u01a1n v\u1ec1 c\u00e1ch \u0111\u00e1nh n\u00e0y. H\u00e3y c\u00f9ng ch\u00fang t\u00f4i t\u00ecm hi\u1ec3u ngay trong b\u00e0i vi\u1ebft n\u00e0y.<\/span><\/p>\nL\u00d4 D\u00c0N L\u00c0 G\u00cc? \u0110\u00c1NH L\u00d4 \u0110\u1ec0 D\u00c0N L\u00c0 G\u00cc?<\/strong><\/span><\/h2>\nL\u00f4 \u0111\u1ec1 d\u00e0n l\u00e0 t\u1eadp h\u1ee3p nh\u1eefng con s\u1ed1 \u0111i c\u00f9ng nhau t\u1ea1o th\u00e0nh d\u00e3y s\u1ed1 theo m\u1ed9t quy lu\u1eadt n\u00e0o \u0111\u00f3. \u0110\u00e1nh l\u00f4 \u0111\u1ec1 d\u00e0n l\u00e0 c\u00e1ch \u0111\u00e1nh an to\u00e0n trong tr\u01b0\u1eddng h\u1ee3p ng\u01b0\u1eddi ch\u01a1i kh\u00f4ng bi\u1ebft theo c\u1ea7u n\u00e0o, ho\u1eb7c v\u1eeba g\u00e3y c\u1ea7u.<\/span><\/p>\nL\u00f4 \u0111\u1ec1 d\u00e0n th\u01b0\u1eddng bao g\u1ed3m t\u1eeb 4 con tr\u1edf l\u00ean, v\u00e0 c\u00f3 nhi\u1ec1u d\u1ea1ng k\u1ebft h\u1ee3p kh\u00e1c nhau. N\u1ebfu b\u1ea1n ph\u00e2n v\u00e2n gi\u1eefa nhi\u1ec1u con s\u1ed1 th\u00ec \u0111\u00e1nh l\u00f4 \u0111\u1ec1 d\u00e0n l\u00e0 c\u00e1ch m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn \u0111\u1ec3 ch\u1eefa ch\u00e1y.<\/span><\/p>\nC\u00c1CH T\u00cdNH TI\u1ec0N L\u00d4 D\u00c0N<\/strong><\/span><\/h3>\nGi\u1ea3 s\u1eed b\u1ea1n mu\u1ed1n \u0111\u00e1nh d\u00e0n 4 con l\u00f4 \u0111\u00e0i mi\u1ec1n B\u1eafc v\u1edbi s\u1ed1 \u0111i\u1ec3m c\u01b0\u1ee3c l\u00e0 10. C\u00e1ch t\u00ednh s\u1ed1 v\u1ed1n b\u1ecf ra nh\u01b0 sau:<\/span><\/p>\n4x10x27=1080\u0111<\/strong><\/span><\/p>\nTrong \u0111\u00f3:<\/span><\/p>\n\n- 4 l\u00e0 s\u1ed1 con l\u00f4 b\u1ea1n \u0111\u00e1nh<\/span><\/li>\n
- 10 l\u00e0 s\u1ed1 \u0111i\u1ec3m b\u1ea1n c\u01b0\u1ee3c cho m\u1ed7i con l\u00f4<\/span><\/li>\n
- 27 l\u00e0 s\u1ed1 ti\u1ec1n quy \u0111\u1ed5i t\u1eeb 1 \u0111i\u1ec3m c\u01b0\u1ee3c<\/span><\/li>\n
- 1120 l\u00e0 s\u1ed1 ti\u1ec1n cu\u1ed1i c\u00f9ng b\u1ea1n ph\u1ea3i b\u1ecf ra cho d\u00e0n l\u00f4 4 con c\u1ee7a m\u00ecnh<\/span><\/li>\n<\/ul>\n
N\u1ebfu h\u00f4m \u0111\u00f3 v\u1ec1 2 l\u00f4 trong d\u00e0n 4 l\u00f4 c\u1ee7a b\u1ea1n (ho\u1eb7c 1 con 2 nh\u00e1y), b\u1ea1n s\u1ebd nh\u1eadn v\u1ec1 s\u1ed1 ti\u1ec1n theo c\u00f4ng th\u1ee9c sau:<\/span><\/p>\n(2x10x99)-1080=900<\/strong><\/span><\/p>\nTrong \u0111\u00f3:<\/span><\/p>\n\n- 2 l\u00e0 s\u1ed1 l\u01b0\u1ee3ng con l\u00f4 b\u1ea1n \u0111\u00e1nh (ho\u1eb7c s\u1ed1 nh\u00e1y m\u00e0 c\u00e1c con l\u00f4 b\u1ea1n \u0111\u00e1nh \u0111\u00e3 ra)<\/span><\/li>\n
- 10 l\u00e0 s\u1ed1 \u0111i\u1ec3m b\u1ea1n \u0111\u00e1nh cho m\u1ed7i con l\u00f4<\/span><\/li>\n
- 99 l\u00e0 t\u1ef7 l\u1ec7 \u0103n v\u1edbi m\u1ed7i \u0111i\u1ec3m c\u01b0\u1ee3c (1 \u0103n 99)<\/span><\/li>\n<\/ul>\n
B\u1ea1n thu v\u1ec1 900 sau khi b\u1ecf ra s\u1ed1 v\u1ed1n 1080, ngh\u0129a l\u00e0 b\u1ea1n l\u1ed7 180. Tuy nhi\u00ean b\u1ea1n c\u00f3 th\u1ec3 y\u00ean t\u00e2m, c\u00e1ch \u0111\u00e1nh n\u00e0y l\u1ea1i c\u00f3 r\u1ea5t nhi\u1ec1u c\u01a1 h\u1ed9i th\u1eafng. Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p th\u1eafng l\u00f4 d\u00e0n 4 con nh\u01b0 v\u00ed d\u1ee5 tr\u00ean l\u00e0 nh\u01b0 sau:<\/span><\/p>\n\n- 1 trong 4 con l\u00f4 ra 3 nh\u00e1y tr\u1edf l\u00ean<\/span><\/li>\n
- 1 con ra 1 nh\u00e1y, 1 con kh\u00e1c ra 2 nh\u00e1y<\/span><\/li>\n
- 3 con ra m\u1ed7i con 1 nh\u00e1y<\/span><\/li>\n
- 4 con ra m\u1ed7i con 1 nh\u00e1y\u2026<\/span><\/li>\n<\/ul>\n
NH\u1eeeNG C\u00c1CH \u0110\u00c1NH L\u00d4 \u0110\u1ec0 D\u00c0N PH\u1ed4 BI\u1ebeN<\/strong><\/span><\/h3>\nD\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng lo\u1ea1i d\u00e0n l\u00f4 \u0111\u1ec1 ho\u1eb7c c\u00e1ch \u0111\u00e1nh d\u00e0n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t trong c\u1ea7u chu\u1ea9n mi\u1ec1n B\u1eafc h\u00e0ng ng\u00e0y.<\/span><\/p>\n\u0110\u00e1nh d\u00e0n l\u00f4 \u0111\u1ec1 theo t\u1ed5ng<\/strong><\/span><\/h4>\n\n\n\nT\u1ed4NG<\/strong><\/span><\/td>\nD\u00c0N L\u00d4 \u0110\u1ec0 THEO T\u1ed4NG<\/strong><\/span><\/td>\n<\/tr>\n\nT\u1ed5ng 0<\/span><\/td>\n | 19,91,28,82,37,73,46,64,55,00<\/span><\/td>\n<\/tr>\n\nT\u1ed5ng 1<\/span><\/td>\n | 01,10,29,92,38,83,47,74,56,65<\/span><\/td>\n<\/tr>\n\nT\u1ed5ng 2<\/span><\/td>\n | 02,20,39,93,48,84,57,75,11,66<\/span><\/td>\n<\/tr>\n\nT\u1ed5ng 3<\/span><\/td>\n | 03,30,12,21,49,94,58,85,67,76<\/span><\/td>\n<\/tr>\n\nT\u1ed5ng 4<\/span><\/td>\n | 04,40,13,31,59,95,68,86,22,77<\/span><\/td>\n<\/tr>\n\nT\u1ed5ng 5<\/span><\/td>\n | 05,50,14,41,23,32,69,96,78,87<\/span><\/td>\n<\/tr>\n\nT\u1ed5ng 6<\/span><\/td>\n | 06,60,15,51,24,42,79,97,33,88<\/span><\/td>\n<\/tr>\n\nT\u1ed5ng 7<\/span><\/td>\n | 07,70,16,61,25,52,34,43,89,98<\/span><\/td>\n<\/tr>\n\nT\u1ed5ng 8<\/span><\/td>\n | 08,80,17,71,26,62,35,53,44,99<\/span><\/td>\n<\/tr>\n\nT\u1ed5ng 9<\/span><\/td>\n | 09,90,18,81,27,72,36,63,45,54<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u0110\u00e1nh d\u00e0n l\u00f4 \u0111\u1ec1 tr\u00f9ng \u0111\u1ea7u<\/strong><\/span><\/h4>\n\n\n\n\u0110\u1ea6U L\u00d4<\/strong><\/span><\/td>\nD\u00c0N L\u00d4 \u0110\u1ec0 TR\u00d9NG \u0110\u1ea6U<\/strong><\/span><\/td>\n<\/tr>\n\n\u0110\u1ea7u 0<\/span><\/td>\n | 00,01,02,03,04,05,06,07,08,09,<\/span><\/td>\n<\/tr>\n\n\u0110\u1ea7u 1<\/span><\/td>\n | 10,11,12,13,14,15,16,17,18,19,<\/span><\/td>\n<\/tr>\n\n\u0110\u1ea7u 2<\/span><\/td>\n | 20,21,22,23,24,25,26,27,28,29,<\/span><\/td>\n<\/tr>\n\n\u0110\u1ea7u 3<\/span><\/td>\n | 30,31,32,33,34,35,36,37,38,39,<\/span><\/td>\n<\/tr>\n\n\u0110\u1ea7u 4<\/span><\/td>\n | 40,41,42,43,44,45,46,47,48,49,<\/span><\/td>\n<\/tr>\n\n\u0110\u1ea7u 5<\/span><\/td>\n | 50,51,52,53,54,55,56,57,58,59,<\/span><\/td>\n<\/tr>\n\n\u0110\u1ea7u 6<\/span><\/td>\n | 60,61,62,63,64,65,66,67,68,69,<\/span><\/td>\n<\/tr>\n\n\u0110\u1ea7u 7<\/span><\/td>\n | 70,71,72,73,74,75,76,77,78,79,<\/span><\/td>\n<\/tr>\n\n\u0110\u1ea7u 8<\/span><\/td>\n | 80,81,82,83,84,85,86,87,88,89,<\/span><\/td>\n<\/tr>\n\n\u0110\u1ea7u 9<\/span><\/td>\n | \n 90,91,92,93,94,95,96,97,98,99,<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u0110\u00e1nh d\u00e0n l\u00f4 \u0111\u1ec1 tr\u00f9ng \u0111u\u00f4i<\/strong><\/span><\/h4>\n\n\n\n\u0110U\u00d4I L\u00d4<\/span><\/td>\n | D\u00c0N L\u00d4 \u0110\u1ec0 TR\u00d9NG \u0110U\u00d4I<\/span><\/td>\n<\/tr>\n\n\u0110u\u00f4i 0<\/span><\/td>\n | 00,10,20,30,40,50,60,70,80,90,<\/span><\/td>\n<\/tr>\n\n\u0110u\u00f4i 1<\/span><\/td>\n | 01,11,21,31,41,51,61,71,81,91,<\/span><\/td>\n<\/tr>\n\n\u0110u\u00f4i 2<\/span><\/td>\n | 02,12,22,32,42,52,62,72,82,92,<\/span><\/td>\n<\/tr>\n\n\u0110u\u00f4i 3<\/span><\/td>\n | 03,13,23,33,43,53,63,73,83,93,<\/span><\/td>\n<\/tr>\n\n\u0110u\u00f4i 4<\/span><\/td>\n | 04,14,24,34,44,54,64,74,84,94,<\/span><\/td>\n<\/tr>\n\n\u0110u\u00f4i 5<\/span><\/td>\n | 05,15,25,35,45,55,65,75,85,95,<\/span><\/td>\n<\/tr>\n\n\u0110u\u00f4i 6<\/span><\/td>\n | 06,16,26,36,46,56,66,76,86,96,<\/span><\/td>\n<\/tr>\n\n\u0110u\u00f4i 7<\/span><\/td>\n | 07,17,27,37,47,57,67,77,87,97,<\/span><\/td>\n<\/tr>\n\n\u0110u\u00f4i 8<\/span><\/td>\n | 08,18,28,38,48,58,68,78,88,98,<\/span><\/td>\n<\/tr>\n\n\u0110u\u00f4i 9<\/span><\/td>\n | \n 09,19,29,39,49,59,69,79,89,99<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u0110\u00e1nh d\u00e0n l\u00f4 \u0111\u1ec1 theo b\u1ed9 s\u1ed1<\/strong><\/span><\/h4>\n\n\n\nB\u1ed8 S\u1ed0<\/strong><\/span><\/td>\nD\u00c0N L\u00d4 T\u01af\u01a0NG \u1ee8NG THEO B\u1ed8 S\u1ed0<\/strong><\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 00<\/span><\/td>\n | 00, 55, 05, 50,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 11<\/span><\/td>\n | 11, 66, 16, 61,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 22<\/span><\/td>\n | 22, 77, 27, 72,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 33<\/span><\/td>\n | 33, 88, 38, 83,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 44<\/span><\/td>\n | 44, 99, 49, 94,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 01<\/span><\/td>\n | 01, 10, 06, 60, 51, 15, 56, 65,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 02<\/span><\/td>\n | 02, 20, 07, 70, 25, 52, 57, 75,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 03<\/span><\/td>\n | 03, 30, 08, 80, 35, 53, 58, 85,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 04<\/span><\/td>\n | 04, 40, 09, 90, 45, 54, 59, 95,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 12<\/span><\/td>\n | 12, 21, 17, 71, 26, 62, 67, 76,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 13<\/span><\/td>\n | 13, 31, 18, 81, 36, 63, 68, 86,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 14<\/span><\/td>\n | 14, 41, 19, 91, 46, 64, 69, 96,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 23<\/span><\/td>\n | 23, 32, 28, 82, 73, 37, 78, 87,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 24<\/span><\/td>\n | 24, 42, 29, 92, 74, 47, 79, 97,<\/span><\/td>\n<\/tr>\n\nB\u1ed9 s\u1ed1 34<\/span><\/td>\n | 34, 43, 39, 93, 84, 48, 89, 98,<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u0110\u00e1nh d\u00e0n l\u00f4 \u0111\u1ec1 theo c\u1ea7u ch\u1ea1m<\/strong><\/span><\/h4>\n\u201cCh\u1ea1m\u201d ngh\u0129a l\u00e0 nh\u1eefng con s\u1ed1 trong ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh d\u00e0n l\u00f4 \u0111\u1ec1 \u0111\u00f3 \u0111\u1ec1u d\u00ednh chung 1 con s\u1ed1 c\u1ed1 \u0111\u1ecbnh.<\/span><\/p>\n | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |