GWD11-10

freesimens

Q10:

A certain quantity is measured on two different scales, the R-scale and the S-scale, that are related 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

我的算法是（24-6）/（60-30）=x/100 算出来x=60，可是给的答案是48？

为什么嘞？？

freesimens

以下是引用yaskemail在2005-8-23 10:42:00的发言：
Should be 18/(x-24) = 30/(100-60), x = 48.

Thanks! You are so grateful!

yaskemail

Should be 18/(x-24) = 30/(100-60), x = 48.