D\u1ef1 \u0111o\u00e1n soi c\u1ea7u l\u00f4 xi\u00ean 3 hi\u1ec7u qu\u1ea3 cho m\u1ecdi ng\u01b0\u1eddi<\/figcaption><\/figure>\nH\u00ecnh th\u1ee9c ch\u01a1i n\u00e0y c\u00f2n c\u00f3 t\u00ean g\u1ecdi kh\u00e1c ch\u00ednh l\u00e0 l\u00f4 \u0111\u00e1 cho ph\u00e9p ng\u01b0\u1eddi ch\u01a1i \u0111\u1eb7t c\u01b0\u1ee3c c\u00f9ng l\u00fac tr\u00ean ba con s\u1ed1. \u0110\u1ec3 th\u1eafng th\u01b0\u1edfng th\u00ec t\u1ea5t c\u1ea3 ba con s\u1ed1 \u0111\u00f3 ph\u1ea3i c\u00f9ng xu\u1ea5t hi\u1ec7n trong k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1. N\u1ebfu ch\u1ec9 c\u00f3 1 ho\u1eb7c 2 con v\u1ec1, ng\u01b0\u1eddi ch\u01a1i s\u1ebd b\u1ecb t\u00ednh l\u00e0 x\u1ecbt l\u00f4.<\/span><\/p>\n<\/span>T\u1ed5ng h\u1ee3p soi c\u1ea7u l\u00f4 xi\u00ean 3 c\u00e1c \u0111\u00e0i<\/b><\/span><\/h2>\nC\u00e1c th\u1ee9c soi c\u1ea7u l\u00f4 xi\u00ean 3 c\u1ee7a t\u1eebng \u0111\u00e0i x\u1ed5 s\u1ed1 s\u1ebd c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t v\u00e0 c\u00e1ch t\u00ednh ti\u1ec1n c\u0169ng th\u1ebf. \u0110\u1ec3 c\u00f3 th\u1ec3 ch\u1ecdn l\u1ef1a \u0111\u01b0\u1ee3c \u0111\u00e0i mang l\u1ea1i hi\u1ec7u qu\u1ea3 l\u1ee3i nhu\u1eadn cao, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o chi ti\u1ebft nh\u1eefng th\u00f4ng tin sau:<\/span><\/p>\n<\/span>B\u1eaft c\u1eb7p c\u00e1c con s\u1ed1 \u0111\u1eb9p trong XSMB<\/b><\/span><\/h3>\nV\u1edbi x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc s\u1ebd c\u00f3 7 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u1edbi 27 gi\u1ea3i th\u01b0\u1edfng t\u1eeb m\u1ecdi \u0111\u00e0i. Nh\u01b0 v\u1eady ch\u1ec9 c\u00f3 21 s\u1ed1 s\u1ebd \u0111\u01b0\u1ee3c b\u1ed1c th\u0103m c\u00f9ng l\u00fac. Do \u0111\u00f3, ch\u00fang ta c\u00f3 th\u1ec3 t\u00ednh t\u1ef7 l\u1ec7 \u1edf mi\u1ec1n B\u1eafc s\u1ebd l\u00e0: 21,5% x 21,5% x 21,5% = 0,994%.<\/span><\/p>\nKhi ch\u01a1i l\u00f4 \u0111\u00e0i mi\u1ec1n B\u1eafc, b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 \u0103n th\u01b0\u1edfng l\u00e0 1:40 – t\u1ee9c l\u00e0 g\u1ea5p 40 l\u1ea7n ti\u1ec1n \u0111\u1eb7t c\u01b0\u1ee3c. M\u1ed7i \u0111i\u1ec3m m\u00e0 ng\u01b0\u1eddi ch\u01a1i c\u1ea7n \u0111\u1eb7t c\u01b0\u1ee3c l\u00e0 23.000 VN\u0110.<\/span><\/p>\nTheo c\u00e1ch n\u00e0y, n\u1ebfu b\u1ea1n \u0111\u00e1nh 10 \u0111i\u1ec3m v\u00e0 tr\u00fang\u00a0 th\u00ec s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c 230.000 VN\u0110. T\u00ednh t\u1ed5ng c\u1ea3 t\u1ef7 l\u1ec7 th\u01b0\u1edfng thi s\u1ed1 ti\u1ec1n th\u1eafng \u0111\u01b0\u1ee3c c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn 4 tr\u0103m ngh\u00ecn \u0111\u1ed3ng.<\/span><\/p>\n<\/span>Soi c\u1ea7u l\u00f4 xi\u00ean 3 \u0111\u00e0i mi\u1ec1n Trung – Nam<\/b><\/span><\/h3>\nHai \u0111\u00e0i mi\u1ec1n Trung v\u00e0 mi\u1ec1n Nam c\u00f3 t\u1ed5ng c\u1ed9ng 18 gi\u1ea3i th\u01b0\u1edfng. Do \u0111\u00f3 x\u00e1c su\u1ea5t th\u1eafng c\u01b0\u1ee3c <\/span>l\u00f4 xi\u00ean 3<\/b> c\u0169ng th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi mi\u1ec1n B\u1eafc. Trung b\u00ecnh t\u1ef7 l\u1ec7 \u0103n c\u1ee7a m\u1ed7i con l\u00f4 \u1edf mi\u1ec1n Trung v\u00e0 mi\u1ec1n Nam ch\u1ec9 kho\u1ea3ng 18%. Nh\u01b0 v\u1eady t\u1ef7 l\u1ec7 \u0103n th\u01b0\u1edfng khi soi c\u1ea7u c\u1ee7a ki\u1ec3u ch\u01a1i n\u00e0y l\u00e0 18% x 18% x 18% = 0,5832%.<\/span><\/p>\n