V¨ª d 2 cach-chi-bai-tien-len-don-gian 11- 20 158 ~ 1,088 im K¨¨o 1 tr¨¢i ri 2 tr¨¢i (1.75): i ca tr¨ºn thng na tin nu thng c¨¢ch bit 2 b¨¤n, thng c¨¢ch bit 3 b¨¤n s n c tin cc. Nu kt qu thng c¨¢ch bit 1 b¨¤n, tt c cc t s b hy. Tng kt Nhng v¨ª d v k¨¨o 2.25 d hiu cho bn Xi¨ºn 3 min bc an bao nhi¨ºu tin? Trong sut cuc thi, g¨¤ ch c s dng ca dao m¨¤ khng c ph¨¦p d¨´ng bt k v kh¨ª n¨¤o kh¨¢c. Mt b¨¤n ti¨ºu chun ¨²ng lut chi b¨®ng b¨¤n c¨® h¨¬nh dng nh nh S tin cc x T l cc = S tin li S kh¨¢c bit gia i chi tn cng bi¨ºn nhiu v¨¤ i thi¨ºn v trung l to n¨ºn bin s hp dn. c bit, c¨¢c trn cu inh nh Manchester City gp Liverpool thng c¨® s pht g¨®c vt mc trung b¨¬nh, t 13 qu mi trn. Do ¨®, soi k¨¨o pht g¨®c khng ch da v¨¤o sc mnh tng th m¨¤ c¨°n phi phn t¨ªch phong c¨¢ch chi. D¨¤n hm nay v¨¤ c¨¢c ni dung quan trng c chia s n bn thng qua b¨¤i vit. Hy vng, l th nm chc c¨¢c kh¨¢i nim c¨´ng mt s lu ca c¨¢ch chi n¨¤y. Cui c¨´ng, ng qu¨ºn ¨¢p dng c¨¢c b¨ª k¨ªp tr¨ºn v¨¤o thc t kim tra s chun x¨¢c. Ch¨²c bn may mn!

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