\(\cfrac{a}{b}=\cfrac{3}{2},\cfrac{b}{c}=\cfrac{3}{2}\) হয় তবে (a+b):(b+c)=-----------
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\(\cfrac{a}{b}=\cfrac{3}{2},\cfrac{b}{c}=\cfrac{3}{2}\) হয় তবে (a+b):(b+c)=3:2
\(a:b=3:2=9:6\)
\(b:c=3:2=6:4\)
\(\therefore a:b:c=9:6:4\)
ধরি, \(a=9k, b=6k\) এবং \(c=4k\)
\(\therefore (a+b):(b+c)=(9k+6k):(6k+4k)\)
\(=15k:10k\)
\(=3:2\)