<\/span><\/h2>\nK\u00e8o c\u00f2n c\u00f3 t\u00ean g\u1ecdi kh\u00e1c l\u00e0 k\u00e8o n\u1eeda m\u1ed9t hay k\u00e8o ch\u1ea5p 0,75. T\u1ea1i nhi\u1ec1u trang c\u00e1 \u0111\u1ed9 b\u00f3ng \u0111\u00e1 tr\u1ef1c tuy\u1ebfn h\u00ecnh th\u1ee9c ch\u1ea5p 0.75 n\u00e0y \u0111ang kh\u00e1 ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i theo \u0111u\u1ed5i.<\/span><\/p>\nTrong \u0111\u00f3, n\u1ebfu \u0111\u1ed9i b\u00f3ng X ch\u1ea5p 3\/4 tr\u00e1i v\u1edbi \u0111\u1ed9i b\u00f3ng Y th\u00ec c\u00f3 ngh\u0129a l\u00e0 \u0111\u1ed9i X c\u1ea7n ghi \u0111\u01b0\u1ee3c 2 b\u00e0n th\u1eafng c\u00e1ch bi\u1ec7t trong tr\u1eadn \u0111\u1ea5u. Nh\u01b0 v\u1eady kh\u00e1ch ch\u01a1i k\u00e8o m\u1edbi c\u00f3 th\u1ec3 chi\u1ebfn th\u1eafng \u0111\u01b0\u1ee3c k\u00e8o ch\u1ea5p.<\/span><\/p>\nN\u00f3i chung nh\u1eefng ng\u01b0\u1eddi m\u1edbi ch\u01a1i khi quan s\u00e1t t\u1ef7 l\u1ec7 k\u00e8o m\u00e0 nh\u00e0 c\u00e1i cung c\u1ea5p s\u1ebd r\u1ea5t kh\u00f3 \u0111\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c c\u00e1c lo\u1ea1i k\u00e8o. Ch\u00ednh v\u00ec v\u1eady n\u1ebfu \u0111\u1eb7t n\u1ea7m \u0111\u1ed9i ch\u1ea5p v\u1edbi c\u00e1c tr\u1eadn \u0111\u1ea5u ra t\u1ef7 l\u1ec7 3\/4 . X\u00e1c su\u1ea5t chi\u1ebfn th\u1eafng c\u1ee7a ng\u01b0\u1eddi ch\u01a1i l\u00fac n\u00e0y s\u1ebd r\u1eddi v\u00e0o kho\u1ea3n 90%.<\/span><\/p>\n