Homework 4-15-2013

A=c*0.85+0.15
B=(A/2)*0.85+0.15
兩式聯立
C=(A/2+B)*0.85+0.15
C=0.425A+0.85B+0.15
得1.85B=C
A=1.5725B+0.15
A=1.5725(0.425A+0.15)+0.15
得A=1.163
B=0.425*1.163+0.15=0.644
C=1.85*0.644=1.19
得C>A>B