35. यदि (A + B) का 20% = B का 50% ह...
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35. यदि (A + B) का 20% = B का 50% हो, 2A - B 9ALE का मान क्या होगा? (2) (4) 1

11th - 12th Class
Maths
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151
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35. ( (1)(mathrm{A}+mathrm{B}) times frac{20}{100}=mathrm{B} times frac{50}{100} ) ( Rightarrow frac{A+B}{5}=frac{B}{2} ) ( Rightarrow 2 A+2 B=5 B ) ( Rightarrow 2 A=3 B ) ( Rightarrow frac{2 A}{B}=3 ) ( therefore quad frac{2 A-B}{2 A+B}=frac{2 frac{A}{B}-1}{2 frac{A}{B}+1}=frac{3-1}{3+1} ) ( =frac{2}{4}=frac{1}{2} )
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