A) \[4:2\]
B) \[3:1\]
C) \[1:3\]
D) \[3:2\]
Correct Answer: B
Solution :
30% of \[(A+B)=60%\] of\[(A-B)\] \[\frac{30}{100}(A+B)=\frac{60}{100}(A-B)\] \[1(A+B)=2((A-B)\] \[\Rightarrow \]\[A+B=2A-2B\] \[\Rightarrow \]\[A-2A=-2B-B\] \[-A=-3B\Rightarrow \frac{A}{B}=\frac{3}{1}\] \[\therefore \]\[A:B=3:1\]You need to login to perform this action.
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