1
r1=R/2
2
r2=R+R/2=3R/2
3
Rob=(R*3R/2)/(R+R*3/2)=R*3/5=0.6R
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Answers & Comments
1
r1=R/2
2
r2=R+R/2=3R/2
3
Rob=(R*3R/2)/(R+R*3/2)=R*3/5=0.6R