A) Rs. 200
B) Rs. 25
C) Rs. 400
D) Rs. 250
Correct Answer: C
Solution :
Let the cost price of an article = Rs. x \[\therefore \] SP of the article \[=Rs.\frac{80}{100x}=Rs.\frac{4x}{5}\] New SP of the article \[=Rs.\frac{4x}{5}+100\] \[\therefore \] \[\frac{4x}{5}+100=\frac{105x}{100}\] \[\Rightarrow \] \[\frac{4x}{5}+100=\frac{21x}{20}\] \[\Rightarrow \] \[\left( \frac{21-16}{20} \right)x=100\] \[\Rightarrow \] \[x=\frac{100\times 20}{5}=400\]You need to login to perform this action.
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