A) Rs. 250
B) Rs. 200
C) Rs. 225
D) Rs. 175
Correct Answer: A
Solution :
CP = Rs. x SP\[=\left[ \frac{90}{100}\times x \right]=\text{Rs}\text{.}\left[ \frac{9}{10}x \right]\] New CP \[=\left[ \frac{80}{100}\times x \right]\]= Rs.\[\left( \frac{4x}{5} \right)\] Now, gain = 40% \[\therefore \]New Selling price \[=\left( \frac{140}{100}\times y\frac{4x}{5} \right)\] = Rs. \[\left( \frac{28x}{5} \right)\] \[\therefore \] \[\frac{28x}{25}-\frac{9}{10}x=55\]\[\Rightarrow \]\[x=250\]You need to login to perform this action.
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