A) \[10%\]
B) \[16\frac{2}{3}%\]
C) \[20%\]
D) \[22\frac{2}{3}%\]
Correct Answer: B
Solution :
Let percentage of profit or loss in on the article be\[x\] \[\because \] \[\frac{50\times 100}{100-x}=\frac{70\times 100}{100+x}\] \[\Rightarrow \] \[5000(100+x)=7000(100-x)\] \[\Rightarrow \] \[500+5x=700-7x\] \[\Rightarrow \] \[12x=200\] \[\therefore \] \[x=\frac{200}{12}=16\frac{2}{3}%\]You need to login to perform this action.
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