A) 10%
B) 60%
C) 200%
D) 400%
Correct Answer: D
Solution :
15% of \[(A+B)=25%\]of \[(A-B)\] \[\Rightarrow \] \[\frac{15}{100}\,\,(A+B)=\frac{25}{100}(A-B)\] \[\Rightarrow \] \[15\,\,(A+B)=25\,\,(A-B)\] \[\Rightarrow \] \[15A+15B=25A-25B\] \[\Rightarrow \] \[10A=40B\] \[\Rightarrow \] \[A=4B\] Now, let x % of B is equal to A \[\therefore \] \[\frac{x}{100}\times B=A\] \[\frac{x}{100}\times =4B\] \[\therefore \] \[x=400%\]You need to login to perform this action.
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