A) Rs. 33000
B) Rs. 31200
C) Rs. 28800
D) Rs. 27000
Correct Answer: C
Solution :
Let the marked price be Rs. x. \[(80%\,\,\text{of}\,\,x)-(75%\,\,\text{of}\,\,x)=1800\] \[\Rightarrow \]\[\left( \frac{80}{100}\times x \right)-\left( \frac{75}{100}\times x \right)=1800\] \[\Rightarrow \]\[\frac{4x}{5}-\frac{3x}{4}=1800\] \[\Rightarrow \]\[(16x-15x)=36000\]\[\Rightarrow \]\[x=36000.\] \[\therefore \] CP = 80% of Rs. 36000 = Rs. \[\left( \frac{80}{100}\times 36000 \right)\]= Rs. 28800You need to login to perform this action.
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