A) \[\frac{7}{6}\]
B) \[\frac{6}{7}\]
C) \[\frac{5}{6}\]
D) \[\frac{6}{5}\]
Correct Answer: A
Solution :
\[(A+B)\times \frac{40}{100}\] \[=(A-B)\times \frac{60}{100}\] \[\Rightarrow \]2(A+B) =3(A-B) \[\Rightarrow \]2A+2B=3A-3B \[\Rightarrow \]A=5B \[\therefore \]\[\frac{2A-3B}{A+B}=\frac{10B-3B}{5B+B}=\frac{7B}{6B}=\frac{7}{6}\]You need to login to perform this action.
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