L\u00f4 3 c\u00e0ng l\u00e0 m\u1ed9t lo\u1ea1i h\u00ecnh th\u1ee9c \u0111\u00e1nh l\u00f4 thu h\u00fat r\u1ea5t \u0111\u00f4ng \u0111\u1ea3o s\u1ef1 tham gia c\u1ee7a c\u00e1c tay ch\u01a1i l\u00e3o luy\u1ec7n b\u1edfi m\u1ee9c ti\u1ec1n th\u01b0\u1edfng c\u1ee7a lo\u1ea1i h\u00ecnh n\u00e0y r\u1ea5t l\u1edbn. V\u1eady \u0111\u1ecbnh ngh\u0129a ch\u00ednh th\u1ee9c v\u1ec1 l\u00f4 3 c\u00e0ng g\u00ec<\/b>? Khi tham gia ch\u01a1i lo\u1ea1i l\u00f4 n\u00e0y c\u1ea7n ph\u1ea3i ch\u00fa \u00fd nh\u01b0 th\u1ebf n\u00e0o? H\u00e3y c\u00f9ng \u0111i t\u00ecm c\u00e2u tr\u1ea3 l\u1eddi qua b\u00e0i vi\u1ebft n\u00e0y cu\u0309a ch\u00fang t\u00f4i <\/strong>nh\u00e9 .<\/span><\/p>\n Khi ch\u01a1i l\u00f4, ngo\u00e0i y\u1ebfu t\u1ed1 may m\u1eafn \u0111em l\u1ea1i, ng\u01b0\u1eddi ch\u01a1i c\u0169ng c\u1ea7n ph\u1ea3i trang b\u1ecb cho b\u1ea3n th\u00e2n nh\u1eefng ki\u1ebfn th\u1ee9c c\u0103n b\u1ea3n nh\u1ea5t. Ch\u1ec9 khi \u0111\u00f3, ng\u01b0\u1eddi ch\u01a1i m\u1edbi t\u1ef1 tin \u0111\u01b0a ra nh\u1eefng ph\u00e1n \u0111o\u00e1n c\u1ee7a m\u00ecnh. V\u00ec v\u1eady, h\u00ecnh th\u1ee9c ch\u01a1i l\u00f4 3 c\u00e0ng l\u00e0 nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n L\u00f4 3 c\u00e0ng l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c ch\u01a1i l\u00f4 b\u1eb1ng c\u00e1ch d\u1ef1 \u0111o\u00e1n ra 1 con s\u1ed1 t\u1eeb 000 \u2013 999. Ng\u01b0\u1eddi th\u1eafng gi\u1ea3i s\u1ebd l\u00e0 ng\u01b0\u1eddi c\u00f3 s\u1ed1 d\u1ef1 \u0111o\u00e1n ch\u00ednh x\u00e1c nh\u1ea5t 3 con s\u1ed1 cu\u1ed1i c\u00f9ng c\u1ee7a t\u1ea5t c\u00e1c c\u00e1c gi\u1ea3i trong x\u1ed5 s\u1ed1 ki\u1ebfn thi\u1ebft. (Tr\u1eeb \u0111i c\u00e1c gi\u1ea3i c\u00f3 2 ch\u1eef s\u1ed1). V\u00ed d\u1ee5: Gi\u1ea3i x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc c\u00f3 gi\u1ea3i t\u01b0 l\u00e0 3038 th\u00ec 038 l\u00e0 3 c\u00e0ng mi\u1ec1n b\u1eafc.<\/p>\n <\/p>\n L\u00f4 3 c\u00e0ng c\u00f3 th\u1ec3 ph\u00e2n lo\u1ea1i l\u00e0m l\u00f4 3 c\u00e0ng mi\u1ec1n b\u1eafc v\u00e0 l\u00f4 3 c\u00e0ng mi\u1ec1n nam. V\u1edbi mi\u1ec1n B\u1eafc l\u00f4 3 c\u00e0ng l\u00e0 g\u00ec ? C\u00f3 kh\u00e1c v\u1edbi l\u00f4 3 c\u00e0ng mi\u1ec1n nam hay kh\u00f4ng? C\u00e2u tr\u1ea3 l\u1eddi g\u1ea7n nh\u01b0 kh\u00f4ng c\u00f3 \u0111i\u1ec3m g\u00ec kh\u00e1c bi\u1ec7t qu\u00e1 l\u1edbn. C\u00e1ch ch\u01a1i c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 nhau. Ch\u1ec9 c\u00f3 kh\u00e1c \u1edf \u0111i\u1ec3m l\u00e0 l\u00f4 3 c\u00e0ng mi\u1ec1n nam s\u1ebd d\u1ef1a theo k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 mi\u1ec1n Nam c\u00f2n mi\u1ec1n b\u1eafc th\u00ec ng\u01b0\u1ee3c l\u1ea1i. V\u00e0 ng\u01b0\u1eddi mi\u1ec1n nam g\u1ecdi l\u00f4 3 c\u00e0ng l\u00e0 X\u1ec9u ch\u1ee7 kh\u00f4ng gi\u1ed1ng nh\u01b0 mi\u1ec1n b\u1eafc. V\u1eady l\u00e0 anh em \u0111\u00e3 hi\u1ec3u l\u00f4 3 c\u00e0ng l\u00e0 g\u00ec r\u1ed3i \u0111\u00fang kh\u00f4ng? Gi\u1edd th\u00ec t\u00ecm hi\u1ec3u t\u1ef7 l\u1ec7 \u0103n l\u00f4 3 c\u00e0ng \u01a1\u0309 ngoa\u0300i va\u0300 khi \u0111a\u0301nh l\u00f4 \u0111\u00ea\u0300 tr\u00ean ma\u0323ng<\/strong> l\u00e0 nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n T\u1ef7 l\u1ec7 \u0103n l\u00f4 3 c\u00e0ng l\u00e0 g\u00ec? \u0110\u00f3 ch\u00ednh l\u00e0 t\u1ef7 l\u1ec7 t\u00ednh \u0111i\u1ec3m l\u00f4 3 c\u00e0ng. T\u1ef7 l\u1ec7 \u0103n l\u00f4 3 c\u00e0ng s\u1ebd t\u00f9y thu\u1ed9c v\u00e0o nh\u00e0 c\u00e1i m\u00e0 b\u1ea1n l\u1ef1a ch\u1ecdn \u0111\u1ec3 tham gia. Nh\u01b0ng \u1edf m\u1ee9c t\u1ed1i thi\u1ec3u, t\u1ef7 l\u1ec7 \u0103n l\u00f4 3 c\u00e0ng l\u00e0 1 \u0103n 400. T\u1ee9c l\u00e0 ng\u01b0\u1eddi ch\u01a1i \u0111\u00e1nh 1 \u0111i\u1ec3m l\u00f4 3 c\u00e0ng n\u1ebfu th\u1eafng s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c s\u1ed1 ti\u1ec1n g\u1ea5p 400 l\u1ea7n s\u1ed1 ti\u1ec1n b\u1ecf ra. M\u1ed9t m\u1ee9c ti\u1ec1n qu\u00e1 h\u1ea5p d\u1eabn v\u00e0 k\u00edch th\u00edch ng\u01b0\u1eddi ch\u01a1i.<\/p>\n \u0110\u1ed9 kh\u00f3 c\u00e0ng cao, l\u1ee3i nhu\u1eadn c\u00e0ng l\u1edbn. T\u00ednh \u0111\u1ebfn nay, t\u1ef7 l\u1ec7 ng\u01b0\u1eddi ch\u01a1i tr\u00fang l\u00f4 3 c\u00e0ng kh\u00f4ng ph\u1ea3i l\u00e0 kh\u00f4ng c\u00f3 nh\u01b0ng r\u1ea5t \u00edt. X\u00e1c su\u1ea5t \u0111\u1ec3 th\u1eafng \u0111\u01b0\u1ee3c l\u00f4 3 c\u00e0ng l\u00e0 1\/1000. Con s\u1ed1 n\u00e0y t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 0,1% \u2013 m\u1ed9t t\u1ef7 l\u1ec7 qu\u00e1 nh\u1ecf v\u00e0 kh\u00f4ng h\u1ec1 d\u1ec5 d\u00e0ng. Theo nh\u01b0 c\u00e1c lo\u1ea1i l\u00f4 th\u00f4ng th\u01b0\u1eddng, x\u00e1c su\u1ea5t \u0111\u1ec3 th\u1eafng gi\u1ea3i l\u00f4 2 l\u00e0 27%, tr\u00ean th\u1ef1c t\u1ebf ch\u1ec9 l\u00e0 21,5%. L\u00f4 3 c\u00e0ng \u0111\u01b0\u1ee3c t\u00ednh t\u1eeb gi\u1ea3i 6 tr\u1edf l\u00ean ch\u00ednh v\u00ec th\u1ebf m\u00e0 x\u00e1c su\u1ea5t \u0111\u1ec3 tr\u00fang gi\u1ea3i l\u00e0 r\u1ea5t r\u1ea5t nh\u1ecf.<\/p>\n Ngo\u00e0i vi\u1ec7c quan t\u00e2m t\u1edbi t\u1ef7 l\u1ec7 \u0103n l\u00f4 3 c\u00e0ng, \u0111\u1ec3 c\u00f3 th\u1ec3 n\u1eafm ch\u1eafc trong tay nh\u1eefng con s\u1ed1 t\u1ed1t nh\u1ea5t \u0111\u1ec3 tr\u00fang gi\u1ea3i, ng\u01b0\u1eddi ch\u01a1i c\u0169ng c\u1ea7n ph\u1ea3i c\u00f3 nh\u1eefng b\u00ed k\u00edp b\u1eaft l\u00f4 chu\u1ea9n x\u00e1c. Ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 tham kh\u1ea3o nh\u1eefng c\u00e1ch d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n C\u00e1ch n\u00e0y ch\u1ee7 y\u1ebfu l\u00e0 d\u1ef1a theo c\u1ea3m t\u00ednh c\u1ee7a ng\u01b0\u1eddi ch\u01a1i. C\u00f3 th\u1ec3 ch\u1ecdn nh\u1eefng con s\u1ed1 hay \u0111i c\u00f9ng nhau ho\u1eb7c \u00e1ng ch\u1eebng l\u00f4 b\u1ea1ch th\u1ee7 h\u00f4m nay l\u00e0 bao nhi\u00eau r\u1ed3i th\u00eam 1 con s\u1ed1 v\u00e0o tr\u01b0\u1edbc.<\/p>\n Ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 d\u1ef1a v\u00e0o con s\u1ed1 gi\u1ea3i 7 c\u1ee7a ng\u00e0y h\u00f4m tr\u01b0\u1edbc sau \u0111\u00f3 gh\u00e9p v\u1edbi 1 con s\u1ed1 trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t. T\u1eeb \u0111\u00f3 s\u1ebd c\u00f3 1 con s\u1ed1 \u0111\u1ec3 \u0111\u00e1nh l\u00f4 3 c\u00e0ng cho ng\u00e0y h\u00f4m sau.<\/p>\n Ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 t\u00f9y ch\u1ecdn theo d\u01b0\u01a1ng l\u1ecbch ho\u1eb7c \u00e2m l\u1ecbch. Sau \u0111\u00f3 l\u1ef1a ch\u1ecdn c\u00e1c con s\u1ed1 theo ng\u00e0y v\u00e0 th\u1ee9 \u0111\u1ec3 t\u1ea1o ra 1 con l\u00f4 3 c\u00e0ng c\u1ea7n \u0111\u00e1nh. V\u00ed d\u1ee5 h\u00f4m nay l\u00e0 ng\u00e0y th\u1ee9 7 v\u00e0 theo \u00e2m l\u1ecbch l\u00e0 ng\u00e0y 15. V\u1eady ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 \u0111\u00e1nh l\u00f4 3 c\u00e0ng l\u00e0 715 ho\u1eb7c 157.<\/p>\n \u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch ch\u01a1i kh\u00e1 ph\u1ed5 bi\u1ebfn. Nhi\u1ec1u ng\u01b0\u1eddi kh\u00e1 quan t\u00e2m t\u1edbi gi\u1ea5c m\u01a1 c\u1ee7a m\u00ecnh. H\u1ecd tin r\u1eb1ng m\u1ed7i gi\u1ea5c m\u01a1 \u0111\u1ec1u \u0111em \u0111\u1ebfn nh\u1eefng th\u00f4ng tin b\u1ed5 \u00edch n\u00e0o \u0111\u00f3. \u0110\u1eb7c bi\u1ec7t trong l\u0129nh v\u1ef1c soi c\u00e2\u0300u l\u00f4 \u0111\u1ec1<\/strong>.<\/p>\nL\u00f4 3 ca\u0300ng la\u0300 gi\u0300 va\u0300 ti\u0309 l\u00ea\u0323 \u0103n l\u00f4 3 ca\u0300ng<\/b><\/h2>\n
\u0110i\u0323nh nghi\u0303a l\u00f4 3 ca\u0300ng<\/b><\/h3>\n
Th\u00f4ng tin v\u1ec1 l\u00f4 3 c\u00e0ng<\/h5>\n
Ty\u0309 l\u00ea\u0323 \u0103n l\u00f4 3 ca\u0300ng<\/b><\/h3>\n
T\u1ef7 l\u1ec7 \u0103n l\u00f4 3 c\u00e0ng<\/h4>\n
C\u00e1ch b\u1eaft l\u00f4 3 c\u00e0ng b\u1ea1c nh\u1edb:<\/b><\/h4>\n
Soi c\u1ea7u l\u00f4 3 c\u00e0ng th\u00f4ng qua gi\u1ea3i 7 v\u00e0 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t: <\/b><\/h4>\n
Ch\u1ed1t l\u00f4 theo ng\u00e0y th\u00e1ng: <\/b><\/h4>\n
Ch\u1ed1t l\u00f4 t\u1eeb vi\u1ec7c gi\u1ea3i m\u00e3 gi\u1ea5c m\u01a1: <\/b><\/h4>\n