KeerthanaPosted on If 2 A=3 B2 mathrm{~A}=3 mathrm{~B}2 A=3 B, then what is the value of (A+B)A?frac{(mathrm{A}+mathrm{B})}{mathrm{A}} ?A(A+B)? a54frac{5}{4}45 b53frac{5}{3}35 c23frac{2}{3}32 d52frac{5}{2}25 Answer : Option BExplanation : 2 A=3 B2 mathrm{~A}=3 mathrm{~B}2 A=3 B ⇒2 A6=3 B6Rightarrow frac{2 mathrm{~A}}{6}=frac{3 mathrm{~B}}{6}⇒62 A=63 B ⇒A3=B2=kRightarrow frac{mathrm{A}}{3}=frac{mathrm{B}}{2}=mathrm{k}⇒3A=2B=k ∴A=3k;B=2k herefore mathrm{A}=3 mathrm{k} ; mathrm{B}=2 mathrm{k}∴A=3k;B=2k ∴A+BA=3k+2k3k=5k3k=53 herefore frac{mathrm{A}+mathrm{B}}{mathrm{A}}=frac{3 mathrm{k}+2 mathrm{k}}{3 mathrm{k}}=frac{5 mathrm{k}}{3 mathrm{k}}=frac{5}{3}∴AA+B=3k3k+2k=3k5k=35 Rate This:NaN / 5 - 1 votesAdd comment