※ 引述《domeself (be strong)》之铭言： : Q10 : A certain quantity is measured on two different scales, : the R-scale and the S-scale, that are realated linearly. : Measurements on the R-scale of 6 and 24 correspond to : measurements on the S-scale of 30 and 60, respectively. : What measurement on the R-scale corresponds to a : measurement of 100 on the S-scale? : A.20 : B.36 : C.48 : D.60 : E.84 : ANS:C 这一题就像温度换算一样 24R-6R αR-6R ------- = ---------- 整理 60S-30S 100S-30S 18 α-6 ----=--------整理 30 100-30 α-6= 42 -->α=48 选C : Q24 : From Leland's gross pay of p dallars last week, t percent : was deducted for taxes and then s dollars was deducted : for savings. What amount of Leland's gross pay last week : remained after these two deductions? : (1)p-s=244 : (2)pt=7,552 : ANS:C Gross Pay= p(1-t%)-s -->p-s-pt% 即可得解 : 麻烦各位大大 算了很久算不出来 感谢 :) 这两题的KEY: 一个是要看出题目想要问的东西，另一个是把题目给的条件式子化 其实我觉得AT数学几乎可以用这两招解。 -- 时间管理 金钱管理 政治不说 饮食管理 迷信不说 装备管理 色情不说 睡眠管理 五大管理 三不说 --

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