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